SDL_sensor.h, SDL_video.h: remove comma at end of enumerator lists.

Avoids gcc -pedantic warnings, closes bug #4253.

include/SDL_sensor.h

@@ -71,7 +71,7 @@ typedef enum
     SDL_SENSOR_INVALID = -1,    /**< Returned for an invalid sensor */
     SDL_SENSOR_UNKNOWN,         /**< Unknown sensor type */
     SDL_SENSOR_ACCEL,           /**< Accelerometer */
-    SDL_SENSOR_GYRO,            /**< Gyroscope */
+    SDL_SENSOR_GYRO             /**< Gyroscope */
 } SDL_SensorType;
 
 /**

include/SDL_video.h

@@ -175,7 +175,7 @@ typedef enum
 typedef enum
 {
     SDL_DISPLAYEVENT_NONE,          /**< Never used */
-    SDL_DISPLAYEVENT_ORIENTATION,   /**< Display orientation has changed to data1 */
+    SDL_DISPLAYEVENT_ORIENTATION    /**< Display orientation has changed to data1 */
 } SDL_DisplayEventID;
 
 typedef enum
@@ -184,7 +184,7 @@ typedef enum
     SDL_ORIENTATION_LANDSCAPE,          /**< The display is in landscape mode, with the right side up, relative to portrait mode */
     SDL_ORIENTATION_LANDSCAPE_FLIPPED,  /**< The display is in landscape mode, with the left side up, relative to portrait mode */
     SDL_ORIENTATION_PORTRAIT,           /**< The display is in portrait mode */
-    SDL_ORIENTATION_PORTRAIT_FLIPPED,   /**< The display is in portrait mode, upside down */
+    SDL_ORIENTATION_PORTRAIT_FLIPPED    /**< The display is in portrait mode, upside down */
 } SDL_DisplayOrientation;
 
 /**