+ /*
+ * Invoke the external refile hook for each message being renamed.
+ */
+
+ (void)snprintf(oldmsg, sizeof (oldmsg), "%s/%d", mp->foldpath, msgnum);
+ (void)snprintf(newmsg, sizeof (newmsg), "%s/%d", mp->foldpath, hole);
+ ext_hook("ref-hook", oldmsg, newmsg);
+