Cleanup.

src/renderer_gl.cpp

@@ -540,6 +540,7 @@ namespace bgfx { namespace gl
 			EXT_framebuffer_blit,
 			EXT_framebuffer_object,
 			EXT_framebuffer_sRGB,
+			EXT_gpu_shader4,
 			EXT_multi_draw_indirect,
 			EXT_occlusion_query_boolean,
 			EXT_packed_float,
@@ -748,6 +749,7 @@ namespace bgfx { namespace gl
 		{ "EXT_framebuffer_blit",                  BGFX_CONFIG_RENDERER_OPENGL >= 30, true  },
 		{ "EXT_framebuffer_object",                BGFX_CONFIG_RENDERER_OPENGL >= 30, true  },
 		{ "EXT_framebuffer_sRGB",                  BGFX_CONFIG_RENDERER_OPENGL >= 30, true  },
+		{ "EXT_gpu_shader4",                       false,                             true  },
 		{ "EXT_multi_draw_indirect",               false,                             true  }, // GLES3.1 extension.
 		{ "EXT_occlusion_query_boolean",           false,                             true  }, // GLES2 extension.
 		{ "EXT_packed_float",                      BGFX_CONFIG_RENDERER_OPENGL >= 33, true  },