view .hg-format-source @ 6842:ee200d1337a7

tests: drop the warning about missing README{,.txt} in sdist

I don't think there's any modern packaging solution that is still unaware that
our README.rst is a valid README file.

According to my 5-minute annotate dive, both setuptools and distutils have
added .rst as a valid extension for README files at least 7 years ago.

{"pattern": "glob:hgext3rd/**/*.py", "tool": "byteify-strings"}