bug#737: vc-dir reports unregistered-then-deleted file is "up-to-date"

[Dan Nicolaescu]

Glenn Morris <rgm@gnu.org> writes:

  > Bob Rogers wrote:
  > 
  > >    0.  Identify a version-controlled directory, call it "foo", and
  > > create an unregistered file there; call it "bar.text".  (Both CVS and
  > > SVN work; haven't tried others.)
  > >
  > >    1.  "emacs -Q" in the "foo" directory.
  > >
  > >    2.  "C-x v d RET" will correctly show the file as "unregistered".
  > >
  > >    3.  Delete "foo/bar.text" via dired or in a shell.
  > >
  > >    4.  Type "g" in vc-dir to update.  The removed "bar.text" file is now
  > > listed incongruously as "up-to-date".

I've checked in patches to fix this for CVS, Subversion and Mercurial.