debugdirstate: deprecate --nodates in favor of --no-dates
We have supported 'no-' prefixes for boolean flag for a few years now,
so I was expecting it to be --no-dates.
I noticed that we have --nodates options for a few more commands
(e.g. `hg diff`), but I'll leave that for another day.
Differential Revision: https://phab.mercurial-scm.org/D4693
https://bz.mercurial-scm.org/1089
$ hg init
$ mkdir a
$ echo a > a/b
$ hg ci -Am m
adding a/b
$ hg rm a
removing a/b
$ hg ci -m m a
$ mkdir a b
$ echo a > a/b
$ hg ci -Am m
adding a/b
$ hg rm a
removing a/b
$ cd b
Relative delete:
$ hg ci -m m ../a
$ cd ..