posix: workaround for os.path.realpath bug in Python 2.4.1 and before
os.path.realpath didn't resolve symlinks that were the first component of
the path, see http://bugs.python.org/
issue1213894
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ hg init
$ echo 'base' > base
$ hg ci -Ambase
adding base
$ hg qnew -mmqbase mqbase
$ hg qsave
$ hg qrestore 2
restoring status: hg patches saved state