tests/readlink.py

largefiles: cleanup of warnings on errors getting largefiles

Especially the "no default or default-push path set in hgrc" was often very
misleading and didn't give any hint where it actually was looking.

A long error messages is better than several multi-line messages.

#!/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)