[wpilib] Rename PneumaticsHub to PneumaticHub (#3686)

Fixes #3684.

wpilibj/src/main/java/edu/wpi/first/wpilibj/PneumaticHub.java

@@ -8,8 +8,8 @@ import edu.wpi.first.hal.REVPHJNI;
 import java.util.HashMap;
 import java.util.Map;
 
-/** Module class for controlling a REV Robotics Pneumatics Hub. */
-public class PneumaticsHub implements PneumaticsBase {
+/** Module class for controlling a REV Robotics Pneumatic Hub. */
+public class PneumaticHub implements PneumaticsBase {
   private static class DataStore implements AutoCloseable {
     public final int m_module;
     public final int m_handle;
@@ -66,17 +66,17 @@ public class PneumaticsHub implements PneumaticsBase {
   private final DataStore m_dataStore;
   private final int m_handle;
 
-  /** Constructs a PneumaticsHub with the default id (1). */
-  public PneumaticsHub() {
+  /** Constructs a PneumaticHub with the default id (1). */
+  public PneumaticHub() {
     this(SensorUtil.getDefaultREVPHModule());
   }
 
   /**
-   * Constructs a PneumaticsHub.
+   * Constructs a PneumaticHub.
    *
    * @param module module number to construct
    */
-  public PneumaticsHub(int module) {
+  public PneumaticHub(int module) {
     m_dataStore = getForModule(module);
     m_handle = m_dataStore.m_handle;
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/PneumaticsBase.java

@@ -16,7 +16,7 @@ public interface PneumaticsBase extends AutoCloseable {
     if (type == PneumaticsModuleType.CTREPCM) {
       return new PneumaticsControlModule(module);
     } else if (type == PneumaticsModuleType.REVPH) {
-      return new PneumaticsHub(module);
+      return new PneumaticHub(module);
     }
     throw new IllegalArgumentException("Unknown module type");
   }

wpilibj/src/main/java/edu/wpi/first/wpilibj/simulation/REVPHSim.java

@@ -9,7 +9,7 @@ import edu.wpi.first.hal.simulation.REVPHDataJNI;
 import edu.wpi.first.wpilibj.PneumaticsBase;
 import edu.wpi.first.wpilibj.SensorUtil;
 
-/** Class to control a simulated PneumaticsHub (PH). */
+/** Class to control a simulated PneumaticHub (PH). */
 @SuppressWarnings("AbbreviationAsWordInName")
 public class REVPHSim {
   private final int m_index;