color: don't crash on invalid status codes (issue2036)
If an unknown file with a newline appears in the status output, color
shouldn't raise a KeyError trying to parse second line in the filename.
adding a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
tip 3:a49829c4fc11
t1 0:f7b1eb17ad24