I'm not sure I follow this fix?
I tested the change with Rubular and it looks as though the new `\w+` (http://rubular.com/r/LXxogNu5q9) doesn't pick up `.jst.hbs` whereas the old `\S+` (http://rubular.com/r/QSEuB0rqUg) does pick it up? 

It seems like the old match found formats such as `.jst.hbs`, are we trying to stop it from doing so?