Update comments to reflect what the code actually does

                EGLint attrib = attrib_list[0];

                // Only enable MSAA if the context is OpenGL ES 2.0 and

                // if a depth buffer is requested

                // if no caveat is requested

                const EGLint *attribRendererable = NULL;

                const EGLint *attribCaveat = NULL;

                // Count the number of attributes and look for

                // EGL_RENDERABLE_TYPE and ELG_DEPTH_SIZE

                // EGL_RENDERABLE_TYPE and EGL_CONFIG_CAVEAT

                while (attrib != EGL_NONE) {

                    attrib = attrib_list[attribCount];

                    switch (attrib) {