Make the reload stasis message bump the ref count of its sub-object

JSON objects are reference stealing. Hence, if you've RAII_VAR'd some
subobject and want to pack it into another JSON object, you have to bump
the reference count. Using the 'O' option during the pack will bump the
reference count for you.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391314 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/loader.c

@@ -750,7 +750,7 @@ static void publish_reload_message(const char *name, enum ast_module_reload_resu
 	event_object = ast_json_pack("{s: s, s: s}",
 			"Module", S_OR(name, "All"),
 			"Status", res_buffer);
-	json_object = ast_json_pack("{s: s, s: i, s: o}",
+	json_object = ast_json_pack("{s: s, s: i, s: O}",
 			"type", "Reload",
 			"class_type", EVENT_FLAG_SYSTEM,
 			"event", event_object);