Philip Withnall eb0d9e709a gapplication: Document that command line options must be validated ...

They come from an external process, so they must be validated.

In particular, it’s always easy to forget to validate the type of a
`GVariant`, and just try to get the stored value using a well-known
type; but that’s a programming error if the `GVariant` actually stores a
different type. Always check the variant type first if loading from a
`v`.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Helps: #1904

2022-12-09 10:45:21 +00:00

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