http://qs321.pair.com?node_id=864785

The other day there was a lengthy bike shedding on how to trim spaces on both ends of a string on LinkedIn (I think you will need to be logged in to see that)

Today I saw another interesting one:

$mechanism =~ s/^\s*\b(.*)\b\s*$/$1/g;
here.

What other interesting ones can we found in open source code? (share them with links, please)