ShowWName: Increase horizontal padding for flash
ShowWName: Increase horizontal padding for flash

Ignore-this: de5fd30fad2630875c5c78091f07c324

Currently the flash window width leaves a very small amount of padding. This
patch adds some extra horizontal width, governed by text width and length.

darcs-hash:20120305164517-fbbbc-062a4f1dae25cfcc8f9e20b1feaea20de92cb738

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib