format string

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4638 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -4583,7 +4583,7 @@ static void sip_i_invite(nua_t *nua,
 
 	if (sip->sip_max_forwards) {
 		char max_forwards[32];
-		snprintf(max_forwards, sizeof(max_forwards), "%u", sip->sip_max_forwards->mf_count);
+		snprintf(max_forwards, sizeof(max_forwards), "%lu", sip->sip_max_forwards->mf_count);
 		switch_channel_set_variable(channel, SWITCH_MAX_FORWARDS_VARIABLE, max_forwards);
 	}