Fix parity bug in egl::Error::createMessageString. The check should be "==" instead of "!=". This gave a crash any time we would generate an Error with a message. Change-Id: I7c5d57e30053591b4713d8c829e89fd1c0703da0 Reviewed-on: https://chromium-review.googlesource.com/244820 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Austin Kinross <aukinros@microsoft.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>