Add restart_docker hook

restart_docker.hook

@@ -0,0 +1,13 @@
+# Reload systemd services on package upgrades
+
+[Trigger]
+Operation = Upgrade
+Type = Package
+Target = docker
+
+[Action]
+Description = Restarting Docker socket
+Depends = systemd
+When = PostTransaction
+Exec = /etc/pacman.d/scripts/restart-hook docker.socket
+