MessageMixin: note that g_queue_find_custom's func should return 0 on success
MessageMixin: note that g_queue_find_custom's func should return 0 on success

Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib