git-grep colouring bug with -w option.

[Dmitry Gryazin <dosagc@xxxxxxxxx>]

I've found that "git-grep --color -w VirtualKeybord" works not correct 
for string like:

vkbd = RVirtualKeyboard(main_window, "VirtualKeyboard")

My script in attachment reproduces this bug.

Attachment: git_grep_colouring_bug.sh
Description: Bourne shell script