tests/readlink.py

tests: remove from __future__ from inline Python in tests

This is no longer required since we require Python 3 and the linter
no longer requires these statements.

Differential Revision: https://phab.mercurial-scm.org/D12255

#!/usr/bin/env python3


import errno
import os
import sys

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

sys.exit(0)