CHANGES attribution reminder

[Jim Jagielski]

Generally, when attribution of a change is
noted in CHANGES, if the patch is from an external
person (or attached in Bugzilla), the person
providing the patch should get sole attribution, unless,
of course, "noteworthy" changes or additions were
done by others, in which case they get attributed
as well. Simply taking someone's patch and then
committing it does not mean that you get to add
yourself to the attribution list. :)