change log level for publisher cleanup

kamailio/presence-notify.cfg

@@ -145,7 +145,7 @@ route[PRESENCE_PUBLISHER_CLEANUP]
     if (sql_xquery("cb", "select * from tmp_probe", "ra") == 1)
     {
         while($xavp(ra) != $null) {
-           xlog("L_WARNING", "processing $xavp(ra=>event) notifies for $xavp(ra=>presentity_uri)\n");
+           xlog("L_DEBUG", "processing $xavp(ra=>event) notifies for $xavp(ra=>presentity_uri)\n");
            pres_refresh_watchers("$xavp(ra=>presentity_uri)", "$xavp(ra=>event)", 1);
            pv_unset("$xavp(ra)");
         }