gpsfailure param @unit

src/modules/navigator/gpsfailure_params.c

@@ -49,7 +49,7 @@
  * The amount of time in seconds the system should do open loop loiter and wait for gps recovery
  * before it goes into flight termination.
  *
- * @unit seconds
+ * @unit s
  * @min 0.0
  * @group GPS Failure Navigation
  */
@@ -84,10 +84,9 @@ PARAM_DEFINE_FLOAT(NAV_GPSF_P, 0.0f);
  *
  * Thrust value which is set during the open loop loiter
  *
+ * @unit
  * @min 0.0
  * @max 1.0
  * @group GPS Failure Navigation
  */
 PARAM_DEFINE_FLOAT(NAV_GPSF_TR, 0.7f);
-
-