Introduce equals_our_barejid()

Instead of always repeating the same pattern, introduce a helper function.

Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>

src/event/server_events.c

@@ -629,7 +629,7 @@ sv_ev_incoming_message(ProfMessage* message)
     char* looking_for_jid = message->from_jid->barejid;
 
     if (message->is_mam) {
-        if (g_strcmp0(connection_get_barejid(), message->from_jid->barejid) == 0) {
+        if (equals_our_barejid(message->from_jid->barejid)) {
             if (message->to_jid) {
                 looking_for_jid = message->to_jid->barejid;
             }