Remove trailing whitespace

Author: zauguin

tests/readme_example.cc

@@ -45,7 +45,7 @@ int main() {
 		db << "select age,name,weight from user where age > ? ;"
 			<< 21
 			>> [&](int _age, string _name, double _weight) {
-				if(_age != age || _name != name) 
+				if(_age != age || _name != name)
 					exit(EXIT_FAILURE);
 				cout << _age << ' ' << _name << ' ' << _weight << endl;
 		};
@@ -54,13 +54,13 @@ int main() {
 			string _name;
 			double _weight;
 			row >> _age >> _name >> _weight;
-			if(_age != age || _name != name) 
+			if(_age != age || _name != name)
 				exit(EXIT_FAILURE);
 			cout << _age << ' ' << _name << ' ' << _weight << endl;
 		}
 
 		for(std::tuple<int, string, double> row : db << "select age,name,weight from user where age > ? ;" << 21) {
-			if(std::get<int>(row) != age || std::get<string>(row) != name) 
+			if(std::get<int>(row) != age || std::get<string>(row) != name)
 				exit(EXIT_FAILURE);
 			cout << std::get<int>(row) << ' ' << std::get<string>(row) << ' ' << std::get<double>(row) << endl;
 		}