Remove trailing whitespace (#3668)

Foundation/samples/base64decode/src/base64decode.cpp

@@ -28,29 +28,29 @@ int main(int argc, char** argv)
 		          << "       read base64-encoded <input_file>, decode it and write the result to <output_file>" << std::endl;
 		return 1;
 	}
-	
+
 	std::ifstream istr(argv[1]);
 	if (!istr)
 	{
 		std::cerr << "cannot open input file: " << argv[1] << std::endl;
 		return 2;
 	}
-	
+
 	std::ofstream ostr(argv[2], std::ios::binary);
 	if (!ostr)
 	{
 		std::cerr << "cannot open output file: " << argv[2] << std::endl;
 		return 3;
 	}
-	
+
 	Base64Decoder decoder(istr);
 	StreamCopier::copyStream(decoder, ostr);
-	
+
 	if (!ostr)
 	{
 		std::cerr << "error writing output file: " << argv[2] << std::endl;
 		return 4;
 	}
-	
+
 	return 0;
 }