The same as `--merge` option above, but changes the way the
conflicting hunks are presented, overriding the
`merge.conflictStyle` configuration variable. Possible values are
- "merge" (default) and "diff3" (in addition to what is shown by
- "merge" style, shows the original contents).
+ "merge" (default), "diff3", and "zdiff3".
-q::
--quiet::