Re: [PATCH 2/2] merge-ort/merge-recursive: do report errors in `merge_submodule()`

Johannes Schindelin [off-list ref] writes:

By my counting, 5 of the handled cases result in ret = -1, i.e.
non-recoverable errors, but 8 of the cases result in ret = 0,
i.e. unclean merges, whereas only 2 cases return 1, i.e. clean
merges.

Sounds good.  Thanks.