ctdb-recoverd: Fix a local memory leak

The memory is allocated off the memory context used by the current
iteration of main loop.  It is freed when main loop completes the fix
doesn't require backporting to stable branches.  However, it is sloppy
so it is worth fixing.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14466
Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

ctdb/server/ctdb_recoverd.c

@@ -2261,6 +2261,7 @@ static int get_remote_nodemaps(struct ctdb_context *ctdb,
 					async_getnodemap_callback,
 					NULL,
 					remote_nodemaps);
+	talloc_free(nodes);
 	return ret;
 }