Add empty line at file end.[ci skip]

Source/Urho3D/Urho2D/SpriterData2D.cpp

@@ -750,4 +750,4 @@ SpriteTimelineKey& SpriteTimelineKey::operator=(const SpriteTimelineKey& rhs)
 
 }
 
-}
+}

Source/Urho3D/Urho2D/SpriterData2D.h

@@ -308,4 +308,4 @@ struct SpriteTimelineKey : SpatialTimelineKey
 
 }
 
-}
+}

Source/Urho3D/Urho2D/SpriterInstance2D.cpp

@@ -284,4 +284,4 @@ void SpriterInstance::Clear()
 
 }
 
-}
+}

Source/Urho3D/Urho2D/SpriterInstance2D.h

@@ -26,8 +26,11 @@
 
 namespace Urho3D
 {
+
 namespace Spriter
 {
+
+/// Loop Mode.
 enum LoopMode
 {
     Default = 0,
@@ -100,5 +103,7 @@ private:
     PODVector<SpatialTimelineKey*> timelineKeys_;
         
 };
+
+}
+
 }
-}