Remove space before percent sign

Seems to be merge artifacts in 260df50ae67e0d9f9d80e0686e6a12903c53c130.

Otherwise, I really like how Caolán implemented this in a proper,
per-locale way. Caolán, you rock!

Change-Id: I42e70b240fdf013316ad282e70b8e42eec8225a8