radeon / r200: Fix 'empty body' warning

radeon_common.c: In function 'radeon_draw_buffer':
radeon_common.c:237:3: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Marek Olšák <marek.olsak@amd.com>

src/mesa/drivers/dri/radeon/radeon_common.c

@@ -233,9 +233,9 @@ void radeon_draw_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)
 		return;
 	}
 
-	if (fb->Name)
+	if (fb->Name) {
 		;/* do something depthy/stencily TODO */
-
+        }
 
 		/* none */
 	if (fb->Name == 0) {