Style refactoring related to safety button

src/modules/commander/Safety.cpp

@@ -42,9 +42,7 @@ using namespace time_literals;
 
 Safety::Safety()
 {
-	/*
-	 * Safety can be turned off with the CBRK_IO_SAFETY parameter.
-	 */
+	// Safety can be turned off with the CBRK_IO_SAFETY parameter.
 	_safety_disabled = circuit_breaker_enabled("CBRK_IO_SAFETY", CBRK_IO_SAFETY_KEY);
 }
 
@@ -67,10 +65,8 @@ bool Safety::safetyButtonHandler()
 		}
 	}
 
-	bool safety_changed = _previous_safety_off != _safety_off;
-
+	const bool safety_changed = _previous_safety_off != _safety_off;
 	_previous_safety_off = _safety_off;
-
 	return safety_changed;
 }