tests: stabilize change for handling not quoting non-empty-directory
The change originated in
cb1329738d64. I suspect the problem is with the
combination of (re) and the '\' to '/' retry on Windows. I've no idea if py3 on
Windows needs the quoting, since it can't even run `hg` with no arguments.
(It's dying somewhere on the ctype declarations when win32.py is imported.)
#if no-windows no-osx
$ mkdir -p xdgconf/hg
$ echo '[ui]' > xdgconf/hg/hgrc
$ echo 'username = foobar' >> xdgconf/hg/hgrc
$ XDG_CONFIG_HOME="`pwd`/xdgconf" ; export XDG_CONFIG_HOME
$ unset HGRCPATH
$ hg config ui.username 2>/dev/null
foobar
#endif