SDL_touch.h (SDL_TouchDeviceType): remove comma at end of enumerator list.

include/SDL_touch.h

@@ -46,7 +46,7 @@ typedef enum
     SDL_TOUCH_DEVICE_INVALID = -1,
     SDL_TOUCH_DEVICE_DIRECT,            /* touch screen with window-relative coordinates */
     SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, /* trackpad with absolute device coordinates */
-    SDL_TOUCH_DEVICE_INDIRECT_RELATIVE, /* trackpad with screen cursor-relative coordinates */
+    SDL_TOUCH_DEVICE_INDIRECT_RELATIVE  /* trackpad with screen cursor-relative coordinates */
 } SDL_TouchDeviceType;
 
 typedef struct SDL_Finger