Brian Gerst [off-list ref] wrote:
Add -m/--modified to show files that have been modified wrt. the index.
M was already taken so the tag for modifified files is C (changed).
I think git-ls-files should be consistent with git-diff-cache where M
means modified and U unmerged (but for the former, M is unmerged).
StGIT currently uses C to report a merge conflict but I will probably
change this since it means copied in git-diff-cache.
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Catalin