pygettext: Always escape non-printable characters regardless of the `--escape` option

[tomasr8]

Feature or enhancement

Proposal:

For context: #131902 (comment)

[...] but I think that non-printable characters should always be escaped. The POT file should be human readable.

Currently, we only escape non-printable ASCII chars, other non-printable characters are not escaped when the --escape is not passed.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-132121: Always escape non-printable characters in pygettext #132122