Change unhandledrejection docs example to use assignment (see #424)
Change unhandledrejection docs example to use assignment (see #424)

Mappy/raven-js,Mappy/raven-js,Mappy/raven-js,getsentry/raven-js,housinghq/main-raven-js,getsentry/raven-js,getsentry/raven-js,housinghq/main-raven-js,housinghq/main-raven-js,getsentry/raven-js