+
When a single commit is given on one line of such input, it compares
the commit with its parents. The following flags further affects its
- behavior. This does not apply to the case where two <tree-ish>
- separated with a single space are given.
+ behavior. The remaining commits, when given, are used as if they are
+ parents of the first commit.
-m::
- By default, "git-diff-tree --stdin" does not show
+ By default, 'git-diff-tree --stdin' does not show
differences for merge commits. With this flag, it shows
differences to that commit from all of its parents. See
also '-c'.