[utility] Move GNU-only code down
[utility] Move GNU-only code down

so `lx` is defined after the general `ls` aliases, and also so we keep
the "condom" aliases were they were before commit 0dfce9e8.

joshuarubin/dotfiles,joshuarubin/dotfiles,joshuarubin/dotfiles,Eriner/zim,joshuarubin/dotfiles