fixed considering chatmessages with a pipe character to be invalid

problem appeared only with ChatStrictLinkChecking.Severity = 2

src/game/Chat.cpp

@@ -1036,7 +1036,7 @@ valid examples:
                     else
                         ++validSequenceIterator;
                 }
-                else
+                else if(commandChar != '|')
                     return false;
             }
         }