ensure that successful configuration results in the module staying loaded (bug #3968)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5424 65c4cc65-6c06-0410-ace0-fbb531ad65f3

cdr/cdr_custom.c

@@ -74,6 +74,7 @@ static int load_config(int reload)
 			var = var->next;
 		}
 		ast_config_destroy(cfg);
+		res = 0;
 	} else {
 		if (reload)
 			ast_log(LOG_WARNING, "Failed to reload configuration file.\n");