hgrc.5: drop 'hgext.' prefix when talking about extensions
The first paragraph apply to all extensions, not just those in hgext.
The second paragraph can just use the simpler form to load mq.
------ Test dirstate._dirs refcounting
$ hg init t
$ cd t
$ mkdir -p a/b/c/d
$ touch a/b/c/d/x
$ touch a/b/c/d/y
$ touch a/b/c/d/z
$ hg ci -Am m
adding a/b/c/d/x
adding a/b/c/d/y
adding a/b/c/d/z
$ hg mv a z
moving a/b/c/d/x to z/b/c/d/x
moving a/b/c/d/y to z/b/c/d/y
moving a/b/c/d/z to z/b/c/d/z
$ cd ..
Issue1790: dirstate entry locked into unset if file mtime is set into
the future
Prepare test repo:
$ hg init u
$ cd u
$ echo a > a
$ hg add
adding a
$ hg ci -m1
Set mtime of a into the future:
$ touch -t 202101011200 a
Status must not set a's entry to unset (issue1790):
$ hg status
$ hg debugstate
n 644 2 2021-01-01 12:00:00 a
$ cd ..