pocompiler: add trailing newline

[kevinlul]

This makes the file POSIX-compliant, which is also the original ecosystem that gettext comes from.

[smhg]

@kevinlul Thank you for your contribution! I wasn't aware these were missing.
You definitely need to run the tests (and linting) when we move on with this (npm run lint and npm test). Can you have a look at that?

[kevinlul]

Side note: the tests on Windows seem to assume .gitattributes * text=auto, or at least for *.po and *.pot. They don't work if Git checks out the files with the original LF endings instead of converting them to CR LF!

[smhg]

Side note: the tests on Windows seem to assume .gitattributes * text=auto, or at least for *.po and *.pot. They don't work if Git checks out the files with the original LF endings instead of converting them to CR LF!

I'm not experienced enough with Git: is this something that we can fix? Can you add it to this PR?

[kevinlul]

Yes, I'll make a separate PR as it's not specifically related to this issue. This one should be done unless you spot any other problems?

[smhg]

Thank you! Released as 6.0.0.
Feel free to send that additional PR.