Make the manpage match the actual behavior with testfiles file names
See https://salsa.debian.org/python-team/tools/dh-python/blob/master/dhpython/build/base.py#L51.
In my package python-docutils, I am now relying on the underscored file name.
See https://salsa.debian.org/python-team/tools/dh-python/blob/master/dhpython/build/base.py#L51.
In my package python-docutils, I am now relying on the underscored file name.