osmo-sgsn: fix arrow tips in flow diagrams

The arrow style used to desribe the flowcharts in gsup.adoc does not match
the arrow style used in the protocol descriptions which are included from
the common directory (gb.adoc, control_if.adoc, oap.adoc). This patch changes
the arrow style to match the already existing common parts.

Change-Id: I7faa0c97ee3705a64289a47bc63f311d05f988b3

1 files changed, 37 insertions, 37 deletions

diff --git a/doc/manuals/chapters/gsup.adoc b/doc/manuals/chapters/gsup.adoc
index 45c0e1d0e..f496b84a8 100644
--- a/doc/manuals/chapters/gsup.adoc
+++ b/doc/manuals/chapters/gsup.adoc
@@ -65,8 +65,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="SEND AUTHENTICATION INFO REQUEST (IMSI)"];
-  Peer -> SGSN [label="SEND AUTHENTICATION INFO RESPONSE (Tuples)"];
+  SGSN => Peer [label="SEND AUTHENTICATION INFO REQUEST (IMSI)"];
+  Peer => SGSN [label="SEND AUTHENTICATION INFO RESPONSE (Tuples)"];
 }
 ----
 
@@ -77,8 +77,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="SEND AUTHENTICATION INFO REQUEST (IMSI)"];
-  Peer -> SGSN [label="SEND AUTHENTICATION INFO ERROR (Cause)"];
+  SGSN => Peer [label="SEND AUTHENTICATION INFO REQUEST (IMSI)"];
+  Peer => SGSN [label="SEND AUTHENTICATION INFO ERROR (Cause)"];
 }
 ----
 
@@ -94,7 +94,7 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="AUTHENTICATION FAILURE REPORT (IMSI)"];
+  SGSN => Peer [label="AUTHENTICATION FAILURE REPORT (IMSI)"];
 }
 ----
 
@@ -115,10 +115,10 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="UPDATE LOCATION REQUEST (IMSI)"];
-  Peer -> SGSN [label="INSERT SUBSCRIBER DATA"];
-  SGSN -> Peer [label="INSERT SUBSCRIBER DATA ACK"];
-  Peer -> SGSN [label="UPDATE LOCATTION RESULT"];
+  SGSN => Peer [label="UPDATE LOCATION REQUEST (IMSI)"];
+  Peer => SGSN [label="INSERT SUBSCRIBER DATA"];
+  SGSN => Peer [label="INSERT SUBSCRIBER DATA ACK"];
+  Peer => SGSN [label="UPDATE LOCATTION RESULT"];
 }
 ----
 
@@ -129,8 +129,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="UPDATE LOCATION REQUEST (IMSI)"];
-  Peer -> SGSN [label="UPDATE LOCATTION ERROR (Cause)"];
+  SGSN => Peer [label="UPDATE LOCATION REQUEST (IMSI)"];
+  Peer => SGSN [label="UPDATE LOCATTION ERROR (Cause)"];
 }
 ----
 
@@ -146,8 +146,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  Peer -> SGSN [label="CANCEL LOCATION REQUEST (IMSI)"];
-  SGSN -> Peer [label="CANCEL LOCATION RESULT"];
+  Peer => SGSN [label="CANCEL LOCATION REQUEST (IMSI)"];
+  SGSN => Peer [label="CANCEL LOCATION RESULT"];
 }
 ----
 
@@ -158,8 +158,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  Peer -> SGSN [label="CANCEL LOCATION REQUEST (IMSI)"];
-  SGSN -> Peer [label="CANCEL LOCATION ERROR (Cause)"];
+  Peer => SGSN [label="CANCEL LOCATION REQUEST (IMSI)"];
+  SGSN => Peer [label="CANCEL LOCATION ERROR (Cause)"];
 }
 ----
 
@@ -176,8 +176,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  SGSN -> Peer [label="PURGE MS REQUEST (IMSI)"];
-  Peer -> SGSN [label="PURGE MS RESULT"];
+  SGSN => Peer [label="PURGE MS REQUEST (IMSI)"];
+  Peer => SGSN [label="PURGE MS RESULT"];
 }
 ----
 
@@ -195,8 +195,8 @@ msc {
   hscale="1.5";
   SGSN [label="SGSN"], Peer [label="Network Peer (HLR)"];
 
-  Peer -> SGSN [label="DELETE SUBSCRIBER DATA REQUEST (IMSI)"];
-  SGSN -> Peer [label="DELETE SUBSCRIBER DATA RESULT"];
+  Peer => SGSN [label="DELETE SUBSCRIBER DATA REQUEST (IMSI)"];
+  SGSN => Peer [label="DELETE SUBSCRIBER DATA RESULT"];
 }
 ----
 
@@ -221,7 +221,7 @@ ignored.
 
 ==== Send Authentication Info Request
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -239,7 +239,7 @@ both optional IEs are present, or none of them.
 
 ==== Send Authentication Info Error
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -251,7 +251,7 @@ Direction: Network peer -> SGSN
 
 ==== Send Authentication Info Response
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -263,7 +263,7 @@ Direction: Network peer -> SGSN
 
 ==== Authentication Failure Report
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -275,7 +275,7 @@ Direction: SGSN -> Network peer
 
 ==== Update Location Request
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -287,7 +287,7 @@ Direction: SGSN -> Network peer
 
 ==== Update Location Error
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -299,7 +299,7 @@ Direction: Network peer -> SGSN
 
 ==== Update Location Result
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -316,7 +316,7 @@ If the PDP info complete IE is present, the old PDP info list shall be cleared.
 
 ==== Location Cancellation Request
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -329,7 +329,7 @@ Direction: Network peer -> SGSN
 
 ==== Location Cancellation Result
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -341,7 +341,7 @@ Direction: SGSN -> Network peer
 
 ==== Purge MS Request
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -354,7 +354,7 @@ Direction: SGSN -> Network peer
 
 ==== Purge MS Error
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -366,7 +366,7 @@ Direction: Network peer -> SGSN
 
 ==== Purge MS Result
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -378,7 +378,7 @@ Direction: Network peer -> SGSN
 
 ==== Insert Subscriber Data Request
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -396,7 +396,7 @@ If the PDP info complete IE is present, the old PDP info list shall be cleared.
 
 ==== Insert Subscriber Data Error
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -408,7 +408,7 @@ Direction: SGSN -> Network peer
 
 ==== Insert Subscriber Data Result
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -419,7 +419,7 @@ Direction: SGSN -> Network peer
 
 ==== Delete Subscriber Data Request
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -432,7 +432,7 @@ Direction: Network peer -> SGSN
 
 ==== Delete Subscriber Data Error
 
-Direction: SGSN -> Network peer
+Direction: SGSN => Network peer
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===
@@ -444,7 +444,7 @@ Direction: SGSN -> Network peer
 
 ==== Delete Subscriber Data Result
 
-Direction: Network peer -> SGSN
+Direction: Network peer => SGSN
 
 [options="header",cols="5%,20%,45%,10%,10%,10%"]
 |===