tests/readlink.py

extdiff: prepare sections of dodiff() for conditionalizing

This is purely indenting under an unconditional branch, so that the actual
changes in the next patch are clear.  Feel free to fold them if desired.

#!/usr/bin/env python

import errno, os, 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, 'not a symlink'

sys.exit(0)