lcd4l: fix removing start/stop hint when init script fails

Origin commit data
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Commit: 921df0c713
Author: vanhofen <vanhofen@gmx.de>
Date: 2021-07-16 (Fri, 16 Jul 2021)

Origin message was:
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- lcd4l: fix removing start/stop hint when init script fails

src/driver/lcd4l.h

@@ -67,12 +67,13 @@ class CLCD4l
 
 		// use signal/slot handlers
 		// That is helping to keep the GUI code away from code inside ./src/driver.
-		sigc::signal<void>	OnBeforeRestart,
-					OnAfterRestart,
-					OnBeforeStart,
+		sigc::signal<void>	OnBeforeStart,
 					OnAfterStart,
 					OnBeforeStop,
-					OnAfterStop;
+					OnAfterStop,
+					OnBeforeRestart,
+					OnAfterRestart,
+					OnAfterError;
 
 	private:
 		std::thread	*thrLCD4l;