Okay - I'm not sure if I'll short for tonight or the morning yet (not so late here).
A CHANGES.txt entry is not needed in my opinion, as this is not a new feature or a bug from 2.4.1.
This could prob be debated from a lot of angles - in the end, it appears pretty much up to each committer what they do -
My rule of thumb has been - when it comes to me, be modest, skip where it makes sense. But when it comes to someone else having reported
the issue - I always add a credit somehow. Outside contributions (in whatever form) deserves credit for reporting things and suppling things (especially tests), and I think it encourages that behavior to a small
degree. Proper credit to outside contributers is very important I think - thats why we put someones name right next to ours, even when the user
may have just reported the issue and we did all the work - or even if two people did 98% of the work and some guy drops a patch that changes
2%. Just my two cents on the subject though - take it for what its worth.