Remove trailing whitespace (#3668)

Foundation/samples/md5/src/md5.cpp

@@ -32,21 +32,21 @@ int main(int argc, char** argv)
 		          << "       create the MD5 digest for <input_file>" << std::endl;
 		return 1;
 	}
-	
+
 	std::ifstream istr(argv[1], std::ios::binary);
 	if (!istr)
 	{
 		std::cerr << "cannot open input file: " << argv[1] << std::endl;
 		return 2;
 	}
-	
+
 	MD5Engine md5;
 	DigestOutputStream dos(md5);
-	
+
 	StreamCopier::copyStream(istr, dos);
 	dos.close();
 
 	std::cout << DigestEngine::digestToHex(md5.digest()) << std::endl;
-	
+
 	return 0;
 }