Optimizes lists of prefixes to reduce list lengths

Current versions

Recent formula history

ilovezfs Use “squiggly” heredocs.
Raza Hussain aggregate: add test (#11749)
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Dominyk Tiller aggregate: fix notation placement

Formula code at GitHub