debugdownload: read repository hgrc if there is one
The command does not require a repository, but will use it if there is one.
This simplifies the reading of the remote destination when testing for
largefile based url.
#!/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)