remember that git considers an addition at the end of a line to be 1 line deleted and a new line added, so that is 3 lines deleted 23 lines added and 2 lines appended.
And 2 of the other deleted lines were refactored into 3 lines added, to append a single argument to the (original) second line.
so really it is 1 line deleted, 20 lines added, 1 line appended, 1 line split in two; that's 23 lines.