Fixing reference answer of Salary Calculator

exercises/concept/salary-calculator/.meta/src/reference/java/SalaryCalculator.java

@@ -8,11 +8,11 @@ public int bonusMultiplier(int productsSold) {
         return productsSold < 20 ? 10 : 13;
     }
 
-    public double bonusForProductsSold (int productsSold) {
+    public double bonusForProductsSold(int productsSold) {
         return productsSold * bonusMultiplier(productsSold);
     }
 
-    public double finalSalary (int daysSkipped, int productsSold) {
+    public double finalSalary(int daysSkipped, int productsSold) {
         double finalSalary = 1000.0 * salaryMultiplier(daysSkipped) + bonusForProductsSold(productsSold);
         return finalSalary > 2000.0 ? 2000.0 : finalSalary;
     }