add newlines to end of .h files.

Framework/AFNetworking.h

@@ -63,4 +63,4 @@ FOUNDATION_EXPORT const unsigned char AFNetworkingVersionString[];
 #endif
 
 
-#endif /* _AFNETWORKING_ */
+#endif /* _AFNETWORKING_ */

UIKit+AFNetworking/UIWebView+AFNetworking.h

@@ -77,4 +77,4 @@ NS_ASSUME_NONNULL_BEGIN
 
 NS_ASSUME_NONNULL_END
 
-#endif
+#endif