update systemd configuration files

systemd/journald.conf

@@ -6,9 +6,11 @@
 #  any later version.
 #
 # 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 journald.conf.d/ subdirectory. The latter is generally recommended.
-# Defaults can be restored by simply deleting this file and all drop-ins.
+# should be created by either modifying this file (or a copy of it placed in
+# /etc/ if the original file is shipped in /usr/), or by creating "drop-ins" in
+# the /etc/systemd/journald.conf.d/ directory. The latter is generally
+# recommended. Defaults can be restored by simply deleting the main
+# configuration file and all drop-ins located in /etc/.
 #
 # Use 'systemd-analyze cat-config systemd/journald.conf' to display the full config.
 #

systemd/networkd.conf

@@ -6,9 +6,13 @@
 #  any later version.
 #
 # 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 networkd.conf.d/ subdirectory. The latter is generally recommended.
-# Defaults can be restored by simply deleting this file and all drop-ins.
+# should be created by either modifying this file (or a copy of it placed in
+# /etc/ if the original file is shipped in /usr/), or by creating "drop-ins" in
+# the /etc/systemd/networkd.conf.d/ directory. The latter is generally
+# recommended. Defaults can be restored by simply deleting the main
+# configuration file and all drop-ins located in /etc/.
+#
+# Use 'systemd-analyze cat-config systemd/networkd.conf' to display the full config.
 #
 # See networkd.conf(5) for details.
 

systemd/sleep.conf

@@ -6,9 +6,13 @@
 #  any later version.
 #
 # 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 sleep.conf.d/ subdirectory. The latter is generally recommended.
-# Defaults can be restored by simply deleting this file and all drop-ins.
+# should be created by either modifying this file (or a copy of it placed in
+# /etc/ if the original file is shipped in /usr/), or by creating "drop-ins" in
+# the /etc/systemd/sleep.conf.d/ directory. The latter is generally
+# recommended. Defaults can be restored by simply deleting the main
+# configuration file and all drop-ins located in /etc/.
+#
+# Use 'systemd-analyze cat-config systemd/sleep.conf' to display the full config.
 #
 # See systemd-sleep.conf(5) for details.
 
@@ -17,11 +21,7 @@ AllowSuspend=no
 AllowHibernation=no
 #AllowSuspendThenHibernate=yes
 #AllowHybridSleep=yes
-#SuspendMode=
 #SuspendState=mem standby freeze
 #HibernateMode=platform shutdown
-#HibernateState=disk
-#HybridSleepMode=suspend platform shutdown
-#HybridSleepState=disk
 #HibernateDelaySec=
 #SuspendEstimationSec=60min

systemd/system.conf

@@ -6,9 +6,11 @@
 #  any later version.
 #
 # 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.
-# Defaults can be restored by simply deleting this file and all drop-ins.
+# should be created by either modifying this file (or a copy of it placed in
+# /etc/ if the original file is shipped in /usr/), or by creating "drop-ins" in
+# /etc/systemd/system.conf.d/ directory. The latter is generally recommended.
+# Defaults can be restored by simply deleting the main configuration file and
+# all drop-ins located in /etc/.
 #
 # Use 'systemd-analyze cat-config systemd/system.conf' to display the full config.
 #