commands: more informative description of "!" files in status
This makes the description more similar to the one used by Subversion.
Suggestion by Dennis Brakhane.
% Without -v
access log created - .hg/hgrc respected
% errors
% With -v
listening at http://localhost/ (bound to 127.0.0.1)
% errors
% With --prefix foo
listening at http://localhost/foo/ (bound to 127.0.0.1)
% errors
% With --prefix /foo
listening at http://localhost/foo/ (bound to 127.0.0.1)
% errors
% With --prefix foo/
listening at http://localhost/foo/ (bound to 127.0.0.1)
% errors
% With --prefix /foo/
listening at http://localhost/foo/ (bound to 127.0.0.1)
% errors