[PATCH] mq: Teach qdelete -u option

[timeless]

David Soria Parra wrote:
> # HG changeset patch
> mq: Teach qdelete -u option
> Passing -u to qdelete will delete all unapplied patches from the queue.

Um, you're definitely going to have to fix the summary.

> +            raise util.Abort(_('option --unapplied not valid when passing '

I'd suggest "is not valid"

> +                               'names or revisions'))

and I'm not sure i like "when passing names or revisions"

perhaps "when specified with ..."