Abort if earlygetopt fails to detect an option.
Otherwise it could happen that a command is used on the wrong repository,
because abbreviations of --cwd or --repository were ignored.
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)