Remove generated spaces on blank lines

Author: mao-sz

generators/writeExercise.js

@@ -6,9 +6,9 @@ async function writeExercise(exercisePath) {
   const { exerciseName } = splitDirectoryName(exercisePath);
   const isSolutionFile = exercisePath.includes("/solution");
   const exerciseContent = `const ${exerciseName} = function() {
-  ${isSolutionFile ? "// Replace this comment with the solution code" : ""}
+${isSolutionFile ? "  // Replace this comment with the solution code" : ""}
 };
-  
+
 // Do not edit below this line
 module.exports = ${exerciseName};
 `;

generators/writeExerciseSpec.js

@@ -17,7 +17,7 @@ describe('${exerciseName}', () => {
 
     expect(${exerciseName}()).toBe('');
   });
-  
+
   test${isSolutionFile ? "" : ".skip"}('Second test description', () => {
     // Replace this comment with any other necessary code, and update the expect line as necessary