Adjust libvirtd sysconfig file to conform to SUSE standards

Index: libvirt-1.2.20/daemon/libvirtd.sysconf
===================================================================
--- libvirt-1.2.20.orig/daemon/libvirtd.sysconf
+++ libvirt-1.2.20/daemon/libvirtd.sysconf
@@ -1,16 +1,25 @@
+## Path: System/Virtualization/libvirt
+
+## Type: string
+## Default: /etc/libvirt/libvirtd.conf
 # Override the default config file
 # NOTE: This setting is no longer honoured if using
 # systemd. Set '--config /etc/libvirt/libvirtd.conf'
 # in LIBVIRTD_ARGS instead.
-#LIBVIRTD_CONFIG=/etc/libvirt/libvirtd.conf
+LIBVIRTD_CONFIG=/etc/libvirt/libvirtd.conf
 
-# Listen for TCP/IP connections
-# NB. must setup TLS/SSL keys prior to using this
-#LIBVIRTD_ARGS="--listen"
+## Type: string
+## Default: --listen
+# Arguments to pass to libvirtd
+LIBVIRTD_ARGS="--listen"
 
+## Type: string
+## Default: none
 # Override Kerberos service keytab for SASL/GSSAPI
 #KRB5_KTNAME=/etc/libvirt/krb5.tab
 
+## Type: string
+## Default: none
 # Override the QEMU/SDL default audio driver probing when
 # starting virtual machines using SDL graphics
 #
@@ -20,14 +29,16 @@
 #
 #SDL_AUDIODRIVER=pulse
 
-# Override the maximum number of opened files.
-# This only works with traditional init scripts.
-# In the systemd world, the limit can only be changed by overriding
-# LimitNOFILE for libvirtd.service. To do that, just create a *.conf
-# file in /etc/systemd/system/libvirtd.service.d/ (for example
-# /etc/systemd/system/libvirtd.service.d/openfiles.conf) and write
-# the following two lines in it:
-#   [Service]
-#   LimitNOFILE=2048
-#
-#LIBVIRTD_NOFILES_LIMIT=2048
+## Type: integer
+## Default: 2048
+## Override the maximum number of opened files.
+## This only works with traditional init scripts.
+## In the systemd world, the limit can only be changed by overriding
+## LimitNOFILE for libvirtd.service. To do that, just create a *.conf
+## file in /etc/systemd/system/libvirtd.service.d/ (for example
+## /etc/systemd/system/libvirtd.service.d/openfiles.conf) and write
+## the following two lines in it:
+##   [Service]
+##   LimitNOFILE=2048
+##
+LIBVIRTD_NOFILES_LIMIT=2048