I could be wrong, but looks like nobody cares about such small fixes.
A few days ago, I've found some very old small errors (one in the 2c(1) man page and one in col(1) that affects man pages' visualization in variable width fonts) but had no feedback.
I guess that the most effective way to cope with such old and small bugs, is to report them on 9fans (and other related mailing lists), possibly with a patch.
This way, any other user that hit the bug (and find your email) can apply the patch and fix them in his $home/bin (or somewhere else) and then bind -b it to /bin.