[PATCH 1 of 4] color: fix grammar in help text

[Yuya Nishihara]

On Sun, 26 Mar 2017 00:41:04 -0400, Matt Harbison wrote:
> # HG changeset patch
> # User Matt Harbison <matt_harbison at yahoo.com>
> # Date 1490462963 14400
> #      Sat Mar 25 13:29:23 2017 -0400
> # Node ID 22533c3af63d5a67d9210596eafd4b99ab9c7904
> # Parent  c60091fa1426892552dd6c0dd4b9c49e3c3da045
> color: fix grammar in help text

This one is queued, thanks.