Vendor patch: Prevent bsnmpd from dumping core when a module's init hook

returns an error.

Approved by:	bz (mentor), harti

contrib/bsnmp/snmpd/main.c

@@ -2242,6 +2242,8 @@ lm_load(const char *path, const char *section)
 	return (m);
 
   err:
+	if ((m->flags & LM_ONSTARTLIST) != 0)
+		TAILQ_REMOVE(&modules_start, m, start);
 	if (m->handle)
 		dlclose(m->handle);
 	free(m->path);