AC_PosControl: minor whitespace fix

libraries/AC_AttitudeControl/AC_PosControl.h

@@ -345,7 +345,7 @@ class AC_PosControl
     /// these must be set every 3 seconds (or less) or they will timeout and return to zero
     void set_posvelaccel_offset_target_xy_cm(const Vector2p& pos_offset_target_xy_cm, const Vector2f& vel_offset_target_xy_cms, const Vector2f& accel_offset_target_xy_cmss);
     void set_posvelaccel_offset_target_z_cm(float pos_offset_target_z_cm, float vel_offset_target_z_cms, float accel_offset_target_z_cmss);
-    
+
     /// get the position, velocity or acceleration offets in cm from EKF origin in NEU frame
     const Vector3p& get_pos_offset_cm() const { return _pos_offset; }
     const Vector3f& get_vel_offset_cms() const { return _vel_offset; }