[commands] SubsystemBase: allow setting name in constructor (#6052)

wpilibNewCommands/src/main/native/include/frc2/command/SubsystemBase.h

@@ -63,6 +63,15 @@ class SubsystemBase : public Subsystem,
   void AddChild(std::string name, wpi::Sendable* child);
 
  protected:
+  /**
+   * Constructor.  Telemetry/log name defaults to the classname.
+   */
   SubsystemBase();
+  /**
+   * Constructor.
+   *
+   * @param name Name of the subsystem for telemetry and logging.
+   */
+  explicit SubsystemBase(std::string_view name);
 };
 }  // namespace frc2