tests/readlink.py

tests: dump journal file by python script instead of sed for portability

Before this patch, test-repair-strip.t fails on Solaris, because of
"sed" on it doesn't work as expected if input contains null ('\0')
character.

#!/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)