Hi!

I'm developping https://pypi.org/project/sphinx-lint/, and it's now able to lint .po files. We use it on python-docs-fr, it's able to spot many typos, like:

library/math.po:157: missing space before default role: 'a 1``True``'. (missing-space-before-default-role)
library/math.po:157: missing space before default role: '  2``False``'. (missing-space-before-default-role)

sphinx-lint show never ever give a false positive (I know, I know, utopia...) but please, please, report any false positive to https://github.com/sphinx-contrib/sphinx-lint/issues if you find one.