Config: Small tweaks to various files

etc/systemd/logind.conf

@@ -7,9 +7,11 @@
 #
 # Entries in this file show the compile time defaults. Local configuration
 # should be created by either modifying this file, or by creating "drop-ins" in
-# the system.conf.d/ subdirectory. The latter is generally recommended.
+# the login.conf.d/ subdirectory. The latter is generally recommended.
 # Defaults can be restored by simply deleting this file and all drop-ins.
 #
+# Use 'systemd-analyze cat-config systemd/logind.conf' to display the full config.
+#
 # See logind.conf(5) for details.
 
 [Login]
@@ -27,6 +29,7 @@ HandlePowerKey=ignore
 #HandleLidSwitchExternalPower=suspend
 #HandleLidSwitchDocked=ignore
 #HandleRebootKey=reboot
+#HandleRebootKeyLongPress=poweroff
 #PowerKeyIgnoreInhibited=no
 #SuspendKeyIgnoreInhibited=no
 #HibernateKeyIgnoreInhibited=no