Retrieves an optional path which is used to control which commit is returned.
|From class java.lang.Object|
Retrieves an optional path which is used to control which commit is returned. When a path is provided, the
commit ID is used as a starting point and may not actually be the commit that
ultimately gets returned. Instead, the first commit which modifies the specified path will be returned. If
none of the commits in the ancestry of the starting commit modify the specified path, no commit is returned.