Fix remaining typos in source documentation and comments

[luzpaz]

Found via codespell -q 3 -S ./3rd-party,./docs/news -L bloc,chello,childs,connexion,fo,improbe,inout,iput,mmaped,msdos,ro,scoll,sentinal,siz,upto,warmup

[ompiteam-bot]

Can one of the admins verify this patch?

[jsquyres]

ok to test

[jsquyres]

bot:aws:retest

[jsquyres]

bot:aws:retest

[jsquyres]

@awlauria @gpaulsen @janjust FYI: I just tried to cherry-pick these commits to v5.0.x and ran into conflicts. The conflicts are all easy enough to resolve, but it means that there are commits that are on main that have not come over to v5.0.x.

Is this already known? I.e., are there some things on main that are intentionally not on v5.0.x? More specifically: is it worth using the attempt to cherry pick the 2 commits on this PR to v5.0.x to find other commits that haven't already been cherry picked to v5.0.x?

[awlauria]

@jsquyres before the next rc I'll do an audit to see what's missing, but you are welcome to check now if you want.

To my knowledge main and v5.0.x should be kept relatively in sync, but of course there's a lag in some cases. There's nothing on main currently that shouldn't be in 5 that I am aware of.

[jsquyres]

FWIW, as of v5.0.x 78d3d9d (i.e., after your v5.0.x merges from this morning), I still get a bunch of conflicts when I try to cherry pick these commits.