subrepo: be more careful with deletions of .hgsub and .hgsubstate (
issue2844)
We shouldn't try to process subrepos if .hgsub isn't present and we
should remove .hgsubstate if .hgsub is marked for removal.
#!/usr/bin/env python
# Filter output by the progress extension to make it readable in tests
import sys, re
for line in sys.stdin:
line = re.sub(r'\r+[^\n]', lambda m: '\n' + m.group()[-1:], line)
sys.stdout.write(line)
print