startup: catch errors in build_modules_xml.py, grass.py

[neteler]

This PR is an extract from #348 (extracted and updated with black):

• gui/wxpython/tools/build_modules_xml.py edits:
  • https://github.com/OSGeo/grass/pull/348/files#diff-11ca77721b6d009b6537c54be4172efed843021797676258ad1141a6c63e6fd1
• lib/init/grass.py edit:
  • https://github.com/OSGeo/grass/pull/348/files#diff-647be4ef599868c33f2f69f0d899f79f0aee8d75d1db74f523268c1ac94cddf7

Not sure if we want these changes but just to avoid to see them lost when closing #348 in favour of #2684.

[wenzeslaus]

Generally, this looks good.

I'm not sure about managing these small changes smartly for the release notes. It does not fit into these categories:

https://github.com/OSGeo/grass/blob/main/utils/release.yml

[neteler]

I'm not sure about managing these small changes smartly for the release notes.

I have changed to use the "startup: ..." keyword.

[neteler]

@wenzeslaus may I merge this PR? Not sure how to properly dismiss the "Changes requested" which I believe have been addressed.

[wenzeslaus]

Dismiss review is in the details of the "change requested" section under the ... menu as Dismiss review which I think gives an option to say why it is no longer relevant. I agree that this is appropriate procedure for a small clearly defined change like this syntax fix, esp. with reviewer not revisiting the PR quickly.

The failure from Ubuntu / minimum config tests is unrelated to this PR (the old run cannot be restarted anymore).