Docbook: Fixup our table delimiters.

Update our table delimiters to match the Asciidoctor documentation.

Change-Id: I87a6834f2889e175236aa609984a9bc4dd9d3b8e
Reviewed-on: https://code.wireshark.org/review/34544
Reviewed-by: Gerald Combs <gerald@wireshark.org>

8 files changed, 56 insertions, 56 deletions

diff --git a/docbook/common_src/typographic_conventions.adoc b/docbook/common_src/typographic_conventions.adoc
index 38751168a8..f5af2595a0 100644
--- a/docbook/common_src/typographic_conventions.adoc
+++ b/docbook/common_src/typographic_conventions.adoc
@@ -15,7 +15,7 @@ The following table shows the typographic conventions that are used in this guid
 
 .Typographic Conventions
 [options="header",cols="1,3,3"]
-|===============
+|===
 |Style|Description|Example
 |_Italic_             |File names, folder names, and extensions |_C:\Development\wireshark_.
 |`Monospace`          |Commands, flags, and environment variables|CMake’s `-G` option.
@@ -23,7 +23,7 @@ The following table shows the typographic conventions that are used in this guid
 |btn:[Button]         |Dialog and window buttons |Press btn:[Launch] to go to the Moon.
 |kbd:[Key]            |Keyboard shortcut |Press kbd:[Ctrl+Down] to move to the next packet.
 |menu:Menu[]          |Menu item |Select menu:Go[Next Packet] to move to the next packet.
-|===============
+|===
 
 ==== Admonitions
 
diff --git a/docbook/wsdg_src/WSDG_chapter_sources.adoc b/docbook/wsdg_src/WSDG_chapter_sources.adoc
index a0234ad852..b97b5022ae 100644
--- a/docbook/wsdg_src/WSDG_chapter_sources.adoc
+++ b/docbook/wsdg_src/WSDG_chapter_sources.adoc
@@ -796,7 +796,7 @@ Wireshark currently supports the following metadata tags:
 
 .Commit message tags
 [options="header"]
-|===============
+|===
 |Tag|Meaning
 |`Change-id`|A unique hash describing the change, which is generated automatically by
 the git commit-msg hook which you installed during setup. This should not be changed,
@@ -806,7 +806,7 @@ to git commit you will have to add this line yourself.
 commit is merged. For use when the change does fully fix the issue.
 |`Ping-Bug`|Make Gerrit just add a comment to the referenced bug. For use when the change
 is related but does not fully fix the issue.
-|===============
+|===
 
 [NOTE]
 ====
diff --git a/docbook/wsdg_src/WSDG_chapter_tools.adoc b/docbook/wsdg_src/WSDG_chapter_tools.adoc
index 7cbca36d8a..7d0da9df9c 100644
--- a/docbook/wsdg_src/WSDG_chapter_tools.adoc
+++ b/docbook/wsdg_src/WSDG_chapter_tools.adoc
@@ -338,10 +338,10 @@ The following table gives an overview of the possible
 Microsoft toolchain variants and their specific C compiler
 versions ordered by release date.
 
-|===============
+|===
 |Compiler Package|cl.exe|_MSC_VER|CRT DLL
 |Visual Studio 2015|14.0|1900|msvcr140.dll
-|===============
+|===
 
 After correct installation of the toolchain, typing
 at the Visual Studio Command line prompt (cmd.exe):
diff --git a/docbook/wsug_src/WSUG_app_files.adoc b/docbook/wsug_src/WSUG_app_files.adoc
index bbc17f9e6f..f85f43b7ec 100644
--- a/docbook/wsug_src/WSUG_app_files.adoc
+++ b/docbook/wsug_src/WSUG_app_files.adoc
@@ -157,7 +157,7 @@ _/usr/local/etc_.
 [[AppFilesTabFolders]]
 .Configuration files overview
 [options="header"]
-|===============
+|===
 |File/Folder|Description
 |_preferences_|Settings from the Preferences dialog box.
 |_recent_|Recent GUI settings (e.g. recent files lists).
@@ -174,7 +174,7 @@ _/usr/local/etc_.
 |_ipxnets_|IPX name resolution.
 |_vlans_|VLAN ID name resolution.
 |_ss7pcs_|SS7 point code resolution.
-|===============
+|===
 
 [float]
 ===== File contents
diff --git a/docbook/wsug_src/WSUG_chapter_advanced.adoc b/docbook/wsug_src/WSUG_chapter_advanced.adoc
index a747697554..fe5bdffa50 100644
--- a/docbook/wsug_src/WSUG_chapter_advanced.adoc
+++ b/docbook/wsug_src/WSUG_chapter_advanced.adoc
@@ -210,13 +210,13 @@ detail below.
 
 .Some example expert infos
 [options="header"]
-|===============
+|===
 |Packet #|Severity|Group|Protocol|Summary
 |1|Note|Sequence|TCP|Duplicate ACK (#1)
 |2|Chat|Sequence|TCP|Connection reset (RST)
 |8|Note|Sequence|TCP|Keep-Alive
 |9|Warn|Sequence|TCP|Fast retransmission (suspected)
-|===============
+|===
 
 [[ChAdvExpertSeverity]]
 
@@ -764,12 +764,12 @@ in which the packet was captured.
 
 .Time zone examples for UTC arrival times (without DST)
 [options="header"]
-|===============
+|===
 ||Los Angeles|New York|Madrid|London|Berlin|Tokyo
 |_Capture File (UTC)_|10:00|10:00|10:00|10:00|10:00|10:00
 |_Local Offset to UTC_|-8|-5|-1|0|+1|+9
 |_Displayed Time (Local Time)_|02:00|05:00|09:00|10:00|11:00|19:00
-|===============
+|===
 
 For example let’s assume that someone in Los Angeles captured a packet with
 Wireshark at exactly 2 o’clock local time and sends you this capture file. The
diff --git a/docbook/wsug_src/WSUG_chapter_capture.adoc b/docbook/wsug_src/WSUG_chapter_capture.adoc
index 2cb3d50b16..ea27d1fd0f 100644
--- a/docbook/wsug_src/WSUG_chapter_capture.adoc
+++ b/docbook/wsug_src/WSUG_chapter_capture.adoc
@@ -677,13 +677,13 @@ Information about the folders used for capture files can be found in
 [[ChCapTabCaptureFiles]]
 .Capture file mode selected by capture options
 [options="header",cols="2,2,2,3,5"]
-|===============
+|===
 |File Name|“Create a new file...”|“Use a ring buffer...”|Mode|Resulting filename(s) used
 |-|-|-|_Single temporary file_|wiresharkXXXXXX (where XXXXXX is a unique number)
 |foo.cap|-|-|_Single named file_|foo.cap
 |foo.cap|x|-|_Multiple files, continuous_|foo_00001_20190714110102.cap, foo_00002_20190714110318.cap, ...
 |foo.cap|x|x|_Multiple files, ring buffer_|foo_00001_20190714110102.cap, foo_00002_20190714110318.cap, ...
-|===============
+|===
 
 _Single temporary file_::
   A temporary file will be created and used (this is the default). After capturing
diff --git a/docbook/wsug_src/WSUG_chapter_use.adoc b/docbook/wsug_src/WSUG_chapter_use.adoc
index 44de1540ce..f9cbd70599 100644
--- a/docbook/wsug_src/WSUG_chapter_use.adoc
+++ b/docbook/wsug_src/WSUG_chapter_use.adoc
@@ -86,7 +86,7 @@ a capture file. See <<ChUseTabGo>> for additional navigation keystrokes.
 [[ChUseTabNav]]
 .Keyboard Navigation
 [options="header",cols="1,3"]
-|===============
+|===
 |Accelerator               |Description
 |kbd:[Tab] or kbd:[Shift+Tab]|Move between screen elements, e.g. from the toolbars to the packet list to the packet detail.
 |kbd:[↓]                   |Move to the next packet or detail item.
@@ -104,7 +104,7 @@ a capture file. See <<ChUseTabGo>> for additional navigation keystrokes.
 |kbd:[Ctrl+←]              |In the packet detail, closes all tree items.
 |kbd:[Backspace]           |In the packet detail, jumps to the parent node.
 |kbd:[Return] or kbd:[Enter] |In the packet detail, toggles the selected tree item.
-|===============
+|===
 
 menu:Help[About Wireshark,Keyboard Shortcuts] will show a list of all shortcuts
 in the main window. Additionally, typing anywhere in the main window will start
@@ -203,7 +203,7 @@ image::wsug_graphics/ws-file-menu.png[{screenshot-attrs}]
 [[ChUseTabFile]]
 .File menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item                            |Accelerator |Description
 
 |menu:Open...[]                       |kbd:[Ctrl+O]|
@@ -284,7 +284,7 @@ This menu item allows you to quit from Wireshark. Wireshark will ask to save
 your capture file if you haven’t previously saved it (this can be disabled by a
 preference setting).
 
-|===============
+|===
 
 [[ChUseEditMenuSection]]
 
@@ -299,7 +299,7 @@ image::wsug_graphics/ws-edit-menu.png[{screenshot-attrs}]
 [[ChUseTabEdit]]
 .Edit menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item                                    |Accelerator       |Description
 |menu:Copy[]                                  ||
 These menu items will copy the packet list, packet detail, or properties of
@@ -382,7 +382,7 @@ many parameters that control Wireshark.  You can also save your preferences so
 Wireshark will use them the next time you start it. More detail is provided in
 <<ChCustPreferencesSection>>.
 
-|===============
+|===
 
 [[ChUseViewMenuSection]]
 
@@ -397,7 +397,7 @@ image::wsug_graphics/ws-view-menu.png[{screenshot-attrs}]
 [[ChUseTabView]]
 .View menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item              |Accelerator|Description
 |menu:Main Toolbar[]    ||This menu item hides or shows the main toolbar, see <<ChUseMainToolbarSection>>.
 |menu:Filter Toolbar[]  ||This menu item hides or shows the filter toolbar, see <<ChUseFilterToolbarSection>>.
@@ -459,17 +459,17 @@ shows only the packet details and bytes. See <<ChWorkPacketSepView>> for
 details.
 
 |menu:Reload[]                                      |kbd:[Ctrl+R]       |This menu item allows you to reload the current capture file.
-|===============
+|===
 
 [[ChUseInternals]]
 .Internals menu items
 [options="header",cols="3,5"]
-|===============
+|===
 |Menu Item|Description
 |menu:Conversation Hash Tables[]| Shows the tuples (address and port combinations) used to identify each conversation.
 |menu:Dissector Tables[]| Shows tables of subdissector relationships.
 |menu:Supported Protocols[]| Displays supported protocols and protocol fields.
-|===============
+|===
 
 
 [[ChUseGoMenuSection]]
@@ -485,7 +485,7 @@ image::wsug_graphics/ws-go-menu.png[{screenshot-attrs}]
 [[ChUseTabGo]]
 .Go menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item                              |Accelerator        |Description
 |menu:Back[]                            |kbd:[Alt+←] |Jump to the recently visited packet in the packet history, much like the page history in a web browser.
 |menu:Forward[]                         |kbd:[Alt+→] |Jump to the next visited packet in the packet history, much like the page history in a web browser.
@@ -497,7 +497,7 @@ image::wsug_graphics/ws-go-menu.png[{screenshot-attrs}]
 |menu:Last Packet[]                     |kbd:[Ctrl+End]     |Jump to the last packet of the capture file.
 |menu:Previous Packet In Conversation[] |kbd:[Ctrl+&#44;]  |Move to the previous packet in the current conversation.  This can be used to move to the previous packet even if the packet list doesn’t have keyboard focus.
 |menu:Next Packet In Conversation[]     |kbd:[Ctrl+.]       |Move to the next packet in the current conversation.  This can be used to move to the previous packet even if the packet list doesn’t have keyboard focus.
-|===============
+|===
 
 [[ChUseCaptureMenuSection]]
 
@@ -512,7 +512,7 @@ image::wsug_graphics/ws-capture-menu.png[{screenshot-attrs}]
 [[ChUseTabCap]]
 .Capture menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item                  |Accelerator    |Description
 
 |menu:Options...[]          |kbd:[Ctrl+K]   |
@@ -539,7 +539,7 @@ See <<ChWorkDefineFilterSection>>.
 |menu:Refresh Interfaces[]  |kbd:[F5]       |
 Clear and recreate the interface list.
 
-|===============
+|===
 
 [[ChUseAnalyzeMenuSection]]
 
@@ -554,7 +554,7 @@ image::wsug_graphics/ws-analyze-menu.png[{screenshot-attrs}]
 [[ChUseAnalyze]]
 .Analyze menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item|Accelerator|Description
 |menu:Display Filters...[]          ||
 Displays a dialog box that allows you to create and edit display
@@ -615,7 +615,7 @@ Those items are shown here.
 See <<ChAdvExpert>> for more information.
 
 The amount of information will vary depend on the protocol
-|===============
+|===
 
 [[ChUseStatisticsMenuSection]]
 
@@ -632,7 +632,7 @@ All menu items will bring up a new window showing specific statistical informati
 [[ChUseStatistics]]
 .Statistics menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item|Accelerator|Description
 |menu:Capture File Properties[]|| Show information about the capture file, see <<ChStatSummary>>.
 |menu:Resolved Addresses[]||See <<ChStatResolvedAddresses>>
@@ -663,7 +663,7 @@ All menu items will bring up a new window showing specific statistical informati
 |menu:IPv6 Statistics[]||See <<ChStatIPv6>>
 
 
-|===============
+|===
 
 [[ChUseTelephonyMenuSection]]
 
@@ -680,7 +680,7 @@ All menu items will bring up a new window showing specific telephony related sta
 [[ChUseTelephony]]
 .Telephony menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item|Accelerator|Description
 |menu:VoIP Calls...[]||See <<ChTelVoipCalls>>
 |menu:ANSI[]||See <<ChTelANSI>>
@@ -700,7 +700,7 @@ All menu items will bring up a new window showing specific telephony related sta
 |menu:SIP Statistics[]||See <<ChTelSIPStatistics>>
 |menu:WAP-WSP Packet Counter[]||See <<ChTelWAPWSPPacketCounter>>
 
-|===============
+|===
 
 [[ChUseToolsMenuSection]]
 
@@ -715,7 +715,7 @@ image::wsug_graphics/ws-tools-menu.png[{screenshot-attrs}]
 [[ChUseTools]]
 .Tools menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item|Accelerator|Description
 |menu:Firewall ACL Rules[]|| This allows you to create command-line ACL rules for many different firewall products, including Cisco IOS, Linux Netfilter (iptables), OpenBSD pf and Windows Firewall (via netsh).  Rules for MAC addresses, IPv4 addresses, TCP and UDP ports, and IPv4+port combinations are supported.
 
@@ -723,7 +723,7 @@ It is assumed that the rules will be applied to an outside interface.
 
 |menu:Lua[]|| These options allow you to work with the Lua interpreter optionally build into Wireshark. See the “Lua Support in Wireshark” in the Wireshark Developer’s Guide.
 |menu:Credentials[]|| This allows you to extract credentials from the current capture file. Some of the dissectors have been instrumented to provide the module with usernames and passwords and more will be instrumented in te future. The window dialog provides you the packet number where the credentials have been found, the protocol that provided them, the username and the password.
-|===============
+|===
 
 [[ChUseHelpMenuSection]]
 
@@ -738,7 +738,7 @@ image::wsug_graphics/ws-help-menu.png[{screenshot-attrs}]
 [[ChUseHelp]]
 .Help menu items
 [options="header",cols="3,2,5"]
-|===============
+|===
 |Menu Item|Accelerator|Description
 |menu:Contents[]|F1| This menu item brings up a basic help system.
 |menu:Manual Pages[...]|| This menu item starts a Web browser showing one of the locally installed html manual pages.
@@ -749,7 +749,7 @@ image::wsug_graphics/ws-help-menu.png[{screenshot-attrs}]
 |menu:Sample Captures[]|| This menu item starts a Web browser showing the sample captures from: link:{wireshark-wiki-url}SampleCaptures[].
 |menu:About Wireshark[]|| This menu item brings up an information window that provides various detailed information items on Wireshark, such as how it’s built, the plugins loaded, the used folders, ...
 
-|===============
+|===
 
 [NOTE]
 ====
@@ -786,7 +786,7 @@ image::wsug_graphics/ws-main-toolbar.png[{screenshot-attrs}]
 [[ChUseMainToolbar]]
 .Main toolbar items
 [options="header",cols="1,2,2,4"]
-|===============
+|===
 |Toolbar Icon|Toolbar Item|Menu Item|Description
 |image:wsug_graphics/toolbar/x-capture-start.png[{toolbar-icon-attrs}] |btn:[Start]|menu:Capture[Start]| Starts capturing packets with the same options as the last capture or the default options if none were set (<<ChCapCapturingSection>>).
 |image:wsug_graphics/toolbar/x-capture-stop.png[{toolbar-icon-attrs}]      |btn:[Stop]|menu:Capture[Stop]| Stops the currently running capture (<<ChCapCapturingSection>>).
@@ -814,7 +814,7 @@ image::wsug_graphics/ws-main-toolbar.png[{screenshot-attrs}]
 |image:wsug_graphics/toolbar/x-resize-columns.png[{toolbar-icon-attrs}] |btn:[Resize Columns]|menu:View[Resize Columns]| Resize columns, so the content fits into them.
 // --
 //|image:wsug_graphics/toolbar/stock_colorselector_24.png[{toolbar-icon-attrs}]|btn:[Coloring Rules...]|menu:View[Coloring Rules...]| This item brings up a dialog box that allows you to color packets in the packet list pane according to filter expressions you choose. It can be very useful for spotting certain types of packets. More detail on this subject is provided in <<ChCustColorizationSection>>.
-|===============
+|===
 
 [[ChUseFilterToolbarSection]]
 
@@ -834,7 +834,7 @@ image::wsug_graphics/ws-filter-toolbar.png[{screenshot-attrs}]
 [[ChUseFilterToolbar]]
 .Filter toolbar items
 [options="header",cols="1,3,5"]
-|===============
+|===
 |Toolbar Icon|Name|Description
 |image:wsug_graphics/toolbar/filter-toolbar-bookmark.png[{filter-icon-attrs}]|Bookmarks|Manage or select saved filters.
 |image:wsug_graphics/toolbar/filter-toolbar-input.png[{filter-icon-attrs}]|Filter Input|The area to enter or edit a display filter string, see <<ChWorkBuildDisplayFilterSection>>. A syntax check of your filter string is done while you are typing. The background will turn red if you enter an incomplete or invalid string, and will become green when you enter a valid string.
@@ -853,7 +853,7 @@ Applying a display filter on large capture files might take quite a long time.
 |btn:[Expression...]|Filter Expression|Open a dialog box that lets you edit a display filter from a list of protocol fields as described in <<ChWorkFilterAddExpressionSection>>
 |image:wsug_graphics/toolbar/filter-toolbar-add.png[{filter-icon-attrs}]|Add Button|Add a new filter expression button.
 |btn:[Squirrels]|Expression Button|Example filter expression button named “Squirrels”.
-|===============
+|===
 
 [[ChUsePacketListPaneSection]]
 
diff --git a/docbook/wsug_src/WSUG_chapter_work.adoc b/docbook/wsug_src/WSUG_chapter_work.adoc
index dd305d97f7..e4ddcdc8d4 100644
--- a/docbook/wsug_src/WSUG_chapter_work.adoc
+++ b/docbook/wsug_src/WSUG_chapter_work.adoc
@@ -70,7 +70,7 @@ menu, and a description of each item.
 [[ColumnHeaderPopupMenuTable]]
 .The menu items of the “Packet List” column header pop-up menu
 [options="header",cols="3,7"]
-|===============
+|===
 |Item |Description
 
 |menu:Align Left[] |
@@ -100,7 +100,7 @@ Show or hide a column by selecting its item.
 |menu:Remove Column[] |
 Remove this column, similar to deleting it in the “Preferences” dialog.
 
-|===============
+|===
 
 [[ChWorkPacketListPanePopUpMenuSection]]
 
@@ -118,7 +118,7 @@ and a short description of each item.
 [[PacketListPopupMenuTable]]
 .The menu items of the “Packet List” pop-up menu
 [options="header",cols="3,1,6"]
-|===============
+|===
 |Item |Corresponding main menu item |Description
 |menu:Mark Packet (toggle)[]|menu:Edit[]| Mark or unmark a packet.
 |menu:Ignore Packet (toggle)[]|menu:Edit[]| Ignore or inspect this packet while dissecting the capture file.
@@ -214,7 +214,7 @@ Shows the selected packet in a separate window. The separate window
 shows only the packet details and bytes. See <<ChWorkPacketSepView>> for
 details.
 
-|===============
+|===
 
 
 [[ChWorkPacketDetailsPanePopUpMenuSection]]
@@ -234,7 +234,7 @@ description of each item.
 
 .The menu items of the “Packet Details” pop-up menu
 [options="header",cols="3,1,6"]
-|===============
+|===
 |Item |Corresponding main menu item |Description
 |menu:Expand Subtrees[]|menu:View[]| Expand the currently selected subtree.
 |menu:Collapse Subtrees[]|menu:View[]| Collapse the currently selected subtree.
@@ -324,7 +324,7 @@ request for a DNS response, show the selected packet in a separate
 window. See <<ChWorkPacketSepView>> for details.
 
 
-|===============
+|===
 
 [[ChWorkPacketBytesPanePopUpMenuSection]]
 
@@ -342,7 +342,7 @@ in this pane along with a short description of each item.
 
 .The menu items of the “Packet Bytes” pop-up menu
 [options="header",cols="3,7"]
-|===============
+|===
 |Item |Description
 
 |menu:Copy Bytes as Hex + ASCII Dump[] |
@@ -382,7 +382,7 @@ Use ASCII encoding when displaying “hexdump” text.
 |menu:...as EBCDIC[] |
 Use EBCDIC encoding when displaying “hexdump” text.
 
-|===============
+|===
 
 [[ChWorkDisplayFilterSection]]
 
@@ -508,7 +508,7 @@ English and C-like operators are interchangeable and can be mixed within a filte
 
 .Display Filter comparison operators
 [options="header",cols="1,1,1,4"]
-|===============
+|===
 |English|C-like|Description|Example
 |eq |== |Equal| `ip.src==10.0.0.5`
 |ne |!= |Not equal| `ip.src!=10.0.0.5`
@@ -519,7 +519,7 @@ English and C-like operators are interchangeable and can be mixed within a filte
 |contains||Protocol, field or slice contains a value| `sip.To contains "a1762"`
 |matches|~|Protocol or text field matches a Perl-compatible regular expression| `http.host matches "acme\.(org\|com\|net)"`
 |bitwise_and|&|Bitwise AND is non-zero| `tcp.flags & 0x02`
-|===============
+|===
 
 All protocol fields have a type. <<ChWorkFieldTypes>> provides a list
 of the types with examples of how to use them in display filters.
@@ -606,7 +606,7 @@ You can combine filter expressions in Wireshark using the logical operators show
 
 .Display Filter Logical Operations
 [options="header",cols="1,1,1,4"]
-|===============
+|===
 |English |C-like    |Description    | Example
 |and     |&amp;&amp;| Logical AND   | `ip.src==10.0.0.5 and tcp.flags.fin`
 |or      |\|\|      | Logical OR    |`ip.scr==10.0.0.5 or ip.src==192.1.1.1`
@@ -614,7 +614,7 @@ You can combine filter expressions in Wireshark using the logical operators show
 |not     |!         | Logical NOT   | `not llc`
 |[...]   |          | Subsequence   | See “Slice Operator” below.
 |in      |          | Set Membership| http.request.method in {"HEAD" "GET"}. See “Membership Operator” below.
-|===============
+|===
 
 ==== Slice Operator
 Wireshark allows you to select a subsequence of a sequence in rather elaborate
@@ -701,14 +701,14 @@ The display filter language has a number of functions to convert fields, see
 [[DispFunctions]]
 .Display Filter Functions
 [options="header",cols="1,4"]
-|===============
+|===
 |Function|Description
 |upper   |Converts a string field to uppercase.
 |lower   |Converts a string field to lowercase.
 |len     |Returns the byte length of a string or bytes field.
 |count   |Returns the number of field occurrences in a frame.
 |string  |Converts a non-string field to a string.
-|===============
+|===
 
 The `upper` and `lower` functions can used to force case-insensitive matches:
 `lower(http.server) contains "apache"`.