make log debug.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6730 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia_reg.c

@@ -641,7 +641,7 @@ void sofia_reg_handle_sip_r_register(int status,
 
 				if (expi != sofia_private->gateway->freq) {
 					sofia_private->gateway->freq = expi;
-					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE,
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
 									  "Changing expire time to %d by request of proxy %s\n", expi, sofia_private->gateway->register_proxy);
 				}