view tests/test-hg-parseurl.py.out @ 17926:65a46635fb31

setup: print subprocess stderr if there is any

I just spent 1.5 days trying to debug a failing buildbot because
setup.py was silently dropping the errors that were being printed
by in-place hg.

http://example.com/no/anchor, branches: (None, [])
http://example.com/an/anchor, branches: ('foo', [])
http://example.com/no/anchor/branches, branches: (None, ['foo'])
http://example.com/an/anchor/branches, branches: ('bar', ['foo'])
http://example.com/an/anchor/branches-None, branches: ('foo', [])
http://example.com/, branches: (None, [])
http://example.com/, branches: (None, [])
http://example.com/, branches: ('foo', [])