Alphabetize gm options (in usage message and option parser). Also add long-form option names for all options. Review URL: https://codereview.appspot.com/6817050
Alphabetize gm options (in usage message and option parser).
Also add long-form option names for all options.
Review URL: https://codereview.appspot.com/6817050

git-svn-id: e8541e15acce502a64c929015570ad1648e548cd@6173 2bbb7eff-a529-9590-31e7-b0007b416f81

Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,MatChung/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,MatChung/color-emoji.skia,MatChung/color-emoji.skia,Frankie-666/color-emoji.skia,Hankuo/color-emoji.skia,MatChung/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia,hbwhlklive/color-emoji.skia,hbwhlklive/color-emoji.skia,Frankie-666/color-emoji.skia,Frankie-666/color-emoji.skia,MatChung/color-emoji.skia,hbwhlklive/color-emoji.skia,Hankuo/color-emoji.skia