tests/readlink.py

subrepo: fix git status false positive (issue3109)

It turns out there's a separate command to force git to look at file contents
if the stat has changed.

#!/usr/bin/env python

import errno, os, sys

for f in sys.argv[1:]:
    try:
        print f, '->', os.readlink(f)
    except OSError, err:
        if err.errno != errno.EINVAL:
            raise
        print f, 'not a symlink'

sys.exit(0)