Update 'install.sh'

install.sh

@@ -459,7 +459,7 @@ fi
 SYSTEM_SETTINGS=$($SUDO_CMD grep -Pzow '\[boot\]\nsystemd\=true' /etc/wsl.conf);
 if [ "$SYSTEM_SETTINGS" == "" ]; then
    		$SUDO_CMD echo "[boot]
-systemd=true" >> /etc/wsl.conf;
+systemd=true" | $SUDO_CMD cat /etc/wsl.conf;
 		echo "Not corresponding wsl configuration found, modified and need a WSL system restart from Windows terminal";
 fi