Fixed some issues in test files

test/solveRPN/solveRPN.js

@@ -22,7 +22,7 @@ stack.push(OPERATORS[symbol](parseFloat(b), parseFloat(a)));
 } else {
 throw `${symbol} is not a recognized symbol`;
 }
-
+});
 if (stack.length === 1) return stack.pop();
 else throw `${rpn} is not a proper RPN. Please check it and try again`;
 };