[commands] Java: Fix CommandXboxController.leftTrigger() parameter or…

…der (#5831)

wpilibNewCommands/src/main/java/edu/wpi/first/wpilibj2/command/button/CommandXboxController.java

@@ -261,13 +261,13 @@ public Trigger back(EventLoop loop) {
    * Constructs a Trigger instance around the axis value of the left trigger. The returned trigger
    * will be true when the axis value is greater than {@code threshold}.
    *
-   * @param loop the event loop instance to attach the Trigger to.
    * @param threshold the minimum axis value for the returned {@link Trigger} to be true. This value
    *     should be in the range [0, 1] where 0 is the unpressed state of the axis.
+   * @param loop the event loop instance to attach the Trigger to.
    * @return a Trigger instance that is true when the left trigger's axis exceeds the provided
    *     threshold, attached to the given event loop
    */
-  public Trigger leftTrigger(EventLoop loop, double threshold) {
+  public Trigger leftTrigger(double threshold, EventLoop loop) {
     return m_hid.leftTrigger(threshold, loop).castTo(Trigger::new);
   }
 
@@ -282,7 +282,7 @@ public Trigger leftTrigger(EventLoop loop, double threshold) {
    *     button loop}.
    */
   public Trigger leftTrigger(double threshold) {
-    return leftTrigger(CommandScheduler.getInstance().getDefaultButtonLoop(), threshold);
+    return leftTrigger(threshold, CommandScheduler.getInstance().getDefaultButtonLoop());
   }
 
   /**