t / t4018 / golang-long-funcon commit restore: take tree-ish from --source option instead (c9c935f)
   1func RIGHT(aVeryVeryVeryLongVariableName AVeryVeryVeryLongType,
   2        anotherLongVariableName AnotherLongType) {
   3        a := 5
   4        b := ChangeMe
   5}