[perl #43335] [TODO] config/auto/revision.pm: Write unit tests

[James Keenan via RT]

I overlooked resolving this 2-1/2 months ago.  It was effectively dealt
with in:
r22702 | jkeenan | 2007-11-04 11:09:27 -0500 (Sun, 04 Nov 2007) | 3 lines