Update APP-MANAGER

- report unknown options

Author: ivan-hc

APP-MANAGER

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-AMVERSION="9.6.1-4"
+AMVERSION="9.6.1-5"
 
 # Determine main repository and branch
 AMREPO="https://raw.githubusercontent.com/ivan-hc/AM/main"
@@ -1249,10 +1249,12 @@ _use_module() {
 
 case "$1" in
 	'')
+		echo "$DIVIDING_LINE"
 		echo " USAGE: $AMCLI [OPTION]"
 		echo "        $AMCLI [OPTION] [ARGUMENT]"
 		echo ""
 		echo " Run the \"$AMCLI -h\" command to find out more"
+		echo "$DIVIDING_LINE"
 		exit 0
 		;;
 	'about'|'-a'|\
@@ -1682,7 +1684,9 @@ case "$1" in
 		if [ -t 1 ]; then _use_help; else _use_help | sed -e 's/\x1b\[[0-9;]*m//g'; fi
 		;;
 	*)
-		exec "$AMCLIPATH"
+		echo "$DIVIDING_LINE"
+		echo "ERROR: unknown option \"$1\", run the \"$AMCLI -h\" command to find out more" | _fit
+		echo "$DIVIDING_LINE"
 		;;
 esac