checkout: Do not show local changes when in quiet mode

Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

builtin-checkout.c

@@ -328,7 +328,7 @@ static int merge_working_tree(struct checkout_opts *opts,
 	    commit_locked_index(lock_file))
 		die("unable to write new index file");
 
-	if (!opts->force)
+	if (!opts->force && !opts->quiet)
 		show_local_changes(&new->commit->object);
 
 	return 0;