Remove trailing whitespace.
Remove trailing whitespace.

This may seem trivial, but it makes viewing git diffs much easier.

YOTOV-LIMITED/whitehall,askl56/whitehall,askl56/whitehall,alphagov/whitehall,ggoral/whitehall,ggoral/whitehall,hotvulcan/whitehall,askl56/whitehall,ggoral/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,hotvulcan/whitehall,askl56/whitehall,YOTOV-LIMITED/whitehall,robinwhittleton/whitehall,robinwhittleton/whitehall,YOTOV-LIMITED/whitehall,hotvulcan/whitehall,robinwhittleton/whitehall,ggoral/whitehall,hotvulcan/whitehall,robinwhittleton/whitehall,alphagov/whitehall,alphagov/whitehall