packaging: normalize - to _ in WiX Id values
- is not a valid identifier character in WiX Ids. So let's
normalize accordingly.
I discovered this issue after a subsequent change which introduces
a directory with a - in its name.
Differential Revision: https://phab.mercurial-scm.org/D9147
[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
'''
skip-string-normalization = true
quiet = true