fix for MODAPP-17, using the +pin on the conference app args, with nothing…

fix for MODAPP-17, using the +pin on the conference app args, with nothing following the + will now override and not prompt for a pin

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5577 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/applications/mod_conference/mod_conference.c

@@ -4047,7 +4047,7 @@ SWITCH_STANDARD_APP(conference_function)
 		rl++;
 
 		/* if this is not an outbound call, deal with conference pins */
-		if (!switch_channel_test_flag(channel, CF_OUTBOUND) && conference->pin) {
+		if (!switch_channel_test_flag(channel, CF_OUTBOUND) && conference->pin && *(conference->pin)) {
 			char pin_buf[80] = "";
 			int pin_retries = 3;	/* XXX - this should be configurable - i'm too lazy to do it right now... */
 			int pin_valid = 0;