Improve debug message for temporary outbound proxies.

Thanks to Paul Belanger for pointing this out.
........

Merged revisions 370797 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/10@370798 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -3198,8 +3198,9 @@ static struct sip_proxy *obproxy_get(struct sip_pvt *dialog, struct sip_peer *pe
 {
 	if (dialog && dialog->options && dialog->options->outboundproxy) {
 		if (sipdebug) {
-			ast_debug(1, "BLAH\n");
+			ast_debug(1, "OBPROXY: Applying dialplan set OBproxy to this call\n");
 		}
+		append_history(dialog, "OBproxy", "Using dialplan obproxy %s", dialog->options->outboundproxy->name);
 		return dialog->options->outboundproxy;
 	}
 	if (peer && peer->outboundproxy) {