Custom settings script is not supported

[Vampire]

If you specified -c or --settings-file already on the commandline, the completion should work with taking that into account.

Actually the code comment in __gradle-set-settings-file already says that it does:

# In order of precedence: --settings-file=filename, settings.gradle, settings.gradle.kts

but only the latter two are supported.

So even if this does not get fixed, at least the code comment should be fixed. But I hope for the former of course. :-)