Allow word-boundary syntax.
Allow word-boundary syntax.

wfxiang08/livegrep,paulproteus/livegrep,paulproteus/livegrep,lekkas/livegrep,wfxiang08/livegrep,lekkas/livegrep,paulproteus/livegrep,paulproteus/livegrep,paulproteus/livegrep,lekkas/livegrep,wfxiang08/livegrep,wfxiang08/livegrep,wfxiang08/livegrep,paulproteus/livegrep,lekkas/livegrep,lekkas/livegrep,wfxiang08/livegrep,lekkas/livegrep