addremove: restore the relative path printing when files are named
This fixes the previously mentioned issue with 3778884197f0, and undoes its
corresponding test change.
The test change demonstrates the correctness when a file is specified (i.e. the
glob is required on Windows because relative paths use '\' and absolute paths
use '/'). It is admittedly very subtle, but there will be a more robust test in
the addremove -S v3 series.
#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 ..