Don't try to call match on nil
Don't try to call match on nil

Fixes #89

gtd/honeybadger-ruby,kylerippey/honeybadger-ruby,kylerippey/honeybadger-ruby,Workable/honeybadger-ruby,honeybadger-io/honeybadger-ruby,Workable/honeybadger-ruby,honeybadger-io/honeybadger-ruby,gtd/honeybadger-ruby