mxcl/homebrew — pull request #25147 by quintonparker (2013-12-11 19:08:28+00:00)
Title: Enable the bundled editline library for percona-server formula

The default is indeed "bundled"

See http://dev.mysql.com/doc/refman/5.6/en/source-configuration-options.html#option_cmake_with_editline

Re-enabling this provides a searchable sql history in client ie. mysql>

Personally, cannot live without this because it's so commonly available by default *nix distros