Add missing newlines to BuiltInFunctionEmulatorGLSL.cpp and Pack_Unpack_test.cpp. BUG=angleproject:947 Change-Id: I8cbcd99e8c2cb7c461b0c624596631a4dec6dcc8 Reviewed-on: https://chromium-review.googlesource.com/276668 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>