The first rule takes precedence in the case of a single <commit>. To
apply the second rule, i.e., format everything since the beginning of
-history up until <commit>, use the '\--root' option: `git format-patch
+history up until <commit>, use the `--root` option: `git format-patch
--root <commit>`. If you want to format only <commit> itself, you
can do this with `git format-patch -1 <commit>`.