Simplify Feature#description
Simplify Feature#description

now re-uses boolean gate description line rather than having the same thing twice.

gdavison/flipper,carlthuringer/flipper,carlthuringer/flipper,jnunemaker/flipper,jnunemaker/flipper,alabeduarte/flipper,jnunemaker/flipper,gdavison/flipper,alabeduarte/flipper,alabeduarte/flipper,carlthuringer/flipper,alabeduarte/flipper,carlthuringer/flipper,jnunemaker/flipper,gdavison/flipper,gdavison/flipper