Vague error message on bad branch

[pietermees]

We have a repository with multiple branches and are using the new --all-branches CLI flag to generate a site that covers all of them.

We're seeing one branch that fails to generate with a "Bad branch" message in the output. However, it's unclear what the actual issue with the branch is.

Validating the files in the branch with the Structurizr CLI validate command comes back fine and structurizr-site-generatr also works fine when running directly on the local files in the branch.

The following lines seem to swallow the underlying exception that could explain what's happening.

structurizr-site-generatr/src/main/kotlin/nl/avisi/structurizr/site/generatr/GenerateSiteCommand.kt

Lines 100 to 101 in e0e6f3b

	println("Bad Branch $branch")
	false