fix parse error in build_requires if comments behind
test src.rpm:
https://mirrors.tuna.tsinghua.edu.cn/centos-vault/7.6.1810/cloud/Source/openstack-pike/common/python-autobahn-0.10.9-1.gitcf10233.el7.src.rpm
================= before fix:
s.build_requires [python2-devel, python-pep8, python-flake8, python-mock >= 1.0.1, pytest >= 2.6.4, python-six, python2-txaio, python-trollius, python-unittest2, python-scour, #, No, python, 3, https://github.com/oberstet/scour/issues/4, scons, python-taschenmesser, #, No, python, 3, https://github.com/oberstet/taschenmesser/issues/3, python-sphinx, python-sphinx-theme-bootstrap, #, Not, packaged, yet, python-sphinxcontrib-spelling, #, Not, packaged, yet, python-repoze-sphinx-autointerface, python-pyenchant]
================== after fix:
s.build_requires [python2-devel, python-pep8, python-flake8, python-mock >= 1.0.1, pytest >= 2.6.4, python-six, python2-txaio, python-trollius, python-unittest2, python-scour, scons, python-taschenmesser, python-sphinx, python-sphinx-theme-bootstrap, python-sphinxcontrib-spelling, python-repoze-sphinx-autointerface, python-pyenchant]