evolve: do not use _ as an unused variable
The _ variable is the i18n function from core Mercurial, so locally
assigning to it can lead to name clashes.
# Copied from histedit setup.py
# Credit to Augie Fackler <durin42@gmail.com>
from distutils.core import setup
setup(
name='hg-evolve',
version='4.0.0',
author='Pierre-Yves David',
maintainer='Pierre-Yves David',
maintainer_email='pierre-yves.david@ens-lyon.org',
url='https://bitbucket.org/marmoute/mutable-history',
description='Flexible evolution of Mercurial history.',
long_description=open('README').read(),
keywords='hg mercurial',
license='GPLv2+',
py_modules=['hgext.evolve'],
)