changed while true to repeat command

src/main/java/frc/robot/RobotContainer.java

@@ -6,9 +6,11 @@
 
 import edu.wpi.first.wpilibj.XboxController;
 import frc.robot.commands.DriveCommands;
+import frc.robot.commands.ServoCommands;
 import frc.robot.subsystems.Servo;
 import frc.robot.subsystems.XRPDrivetrain;
 import edu.wpi.first.wpilibj2.command.Command;
+import edu.wpi.first.wpilibj2.command.RepeatCommand;
 import edu.wpi.first.wpilibj2.command.button.CommandXboxController;
 import edu.wpi.first.wpilibj2.command.button.Trigger;
 
@@ -48,8 +50,8 @@ public RobotContainer() {
   private void configureButtonBindings() {
     //TODO: Task 7-Uncomment the lines below and replace the null values with the commands you created to move the servo up and down, such that the y button moves it up
     //and the a button moves it down.
-    // m_controller.y().whileTrue(null);
-    // m_controller.a().whileTrue(null);
+    // m_controller.y().whileTrue(new RepeatCommand(null));
+    // m_controller.a().whileTrue(new RepeatCommand(null));
   }
 
   /**