tests: stabilize ssh tests on Windows
This seems like a somewhat common type of failure (double vs single quote), so
I'm interested in ideas about how to avoid this. I doubt that we should
automatically fall back from single quote to double quote, like with '/' vs '\'.
#!/usr/bin/env python
from __future__ import absolute_import, print_function
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)