This mod prevents the OpenGL GL_INVALID_ENUM error from being logged more than once. If you know what that is, this is probably for you. If not, don't worry about it. This is a tool for people who read the debug log (mainly developers).
Click here for more information on what that error is.
Since v1.1.0, it also suppresses GL_INVALID_VALUE and GL_INVALID_OPERATION. v1.1.0 also adds a configuration screen, so be sure to download it if you still have v1.0.0.
Since v1.2.0, it also suppresses error #2.