simplify postinst

Author: ipitio

debian/control

@@ -4,7 +4,7 @@ Homepage: https://github.com/ipitio/closure
 Standards-Version: 3.9.2
 
 Package: closure
-Version: 1.6.23
+Version: 1.6.24
 Maintainer: ipitio <[email protected]>
 Depends: curl, flatpak, gpg, hostapd, isc-dhcp-server, iw, macchanger, netplan.io, network-manager, net-tools, qrencode, rfkill, wireguard, wireless-tools, wget
 Recommends: containerd.io, docker-ce, docker-ce-cli, docker-buildx-plugin, docker-compose-plugin

debian/postinst

@@ -2,14 +2,7 @@
 # shellcheck disable=SC1003
 
 pushd /opt/closure || exit 1
-
-if [ -f /etc/rc.local ]; then
-    grep -q '^# closure' /etc/rc.local || cp /etc/rc.local rc.local.bak
-else
-    echo "#\!/bin/bash" | tr -d '\\' | tee /etc/rc.local >/dev/null
-fi
-
-grep -q '^# closure' /etc/rc.local || sed 1,1d rc.local | tee -a /etc/rc.local >/dev/null
+cp rc.local /etc/rc.local rc.local.bak
 chmod +x /etc/rc.local
 [ ! -f /opt/closure/installed ] || rm -rf /opt/closure/installed
 popd || exit 1