tests/test-revert-flags.t

largefiles: don't mangle filesets when fixing up the log matcher

The fileset-generated.t test previously failed with this:

  +  hg: parse error: unknown identifier: .hglf/modified
  +  (did you mean 'modified'?)
  +  [255]

Filesets will find the standins on their own, without any help.  While that's
useful for some things like modified(), clean(), etc., it is wrong for things
like size().  Proper fileset support for largefiles is not trivial, but this was
failing with just the extension enabled on a normal repo.

#require execbit

  $ hg init repo
  $ cd repo
  $ echo foo > foo
  $ chmod 644 foo
  $ hg ci -qAm '644'

  $ chmod 755 foo
  $ hg ci -qAm '755'

reverting to rev 0

  $ hg revert -a -r 0
  reverting foo
  $ hg st
  M foo
  $ hg diff --git
  diff --git a/foo b/foo
  old mode 100755
  new mode 100644

  $ cd ..