Add read_format extension to manual pages

The -X read_format extension was added in code but in the manuals.

Change-Id: I21692120229ef531671fc3db247809ace69d23b3
Reviewed-on: https://code.wireshark.org/review/742
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/doc/tshark.pod b/doc/tshark.pod
index c195a87659..83b4222ecc 100644
--- a/doc/tshark.pod
+++ b/doc/tshark.pod
@@ -785,16 +785,20 @@ after printing the summary and/or details, if either are also being displayed.
 Specify an option to be passed to a B<TShark> module.  The eXtension option
 is in the form I<extension_key>B<:>I<value>, where I<extension_key> can be:
 
-B<lua_script>:I<lua_script_filename> tells B<Wireshark> to load the given script in addition to the
+B<lua_script>:I<lua_script_filename> tells B<TShark> to load the given script in addition to the
 default Lua scripts.
 
-B<lua_script>I<num>:I<argument> tells B<Wireshark> to pass the given argument
+B<lua_script>I<num>:I<argument> tells B<TShark> to pass the given argument
 to the lua script identified by 'num', which is the number indexed order of the 'lua_script' command.
 For example, if only one script was loaded with '-X lua_script:my.lua', then '-X lua_script1:foo'
 will pass the string 'foo' to the 'my.lua' script.  If two scripts were loaded, such as '-X lua_script:my.lua'
 and '-X lua_script:other.lua' in that order, then a '-X lua_script2:bar' would pass the string 'bar' to the second lua
 script, namely 'other.lua'.
 
+B<read_format>:I<file_format> tells B<TShark> to use the given file format to read in the
+file (the file given in the B<-r> command option). Providing no I<file_format> argument, or
+an invalid one, will produce a file of available file formats to use.
+
 =item -y  E<lt>capture link typeE<gt>
 
 Set the data link type to use while capturing packets.  The values