Fix test-convert-darcs output on Debian etch (issue779)
The CR characters of darcs get confused the output.
Additionally this darcs version printed:
darcs: <stdin>: hGetLine: end of file
#!/usr/bin/env python
#
# mercurial - scalable distributed SCM
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
# enable importing on demand to reduce startup time
from mercurial import demandimport; demandimport.enable()
import mercurial.dispatch
mercurial.dispatch.run()