Exit with non-zero code if docs plugin has error #2081
Merged
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Prior to this commit running a documentation plugin resulted in a zero
exit code even if the plugin explicitly returned an error. This meant
that in a CI/CD pipeline, for instance, the pipeline couldn't check the
exit code and instead had to check the console or log output, which was
brittle.
Fixes #2080
Signed-off-by: John Boyes 154404+johnboyes@users.noreply.github.com