kvm_net: switch to perldoc documentation header

plugins/libvirt/kvm_net

@@ -1,18 +1,36 @@
 #!/usr/bin/python3
-# vim: set fileencoding=utf-8
-#
-# Munin plugin to show the network I/O per vm
-#
-# Copyright Igor Borodikhin
-#
-# License : GPLv3
-#
-#
-# parsed environment variables:
-# vmsuffix: part of vm name to be removed
-#
-#%# capabilities=autoconf
-#%# family=contrib
+"""
+
+=head1 NAME
+
+kvm_net - Munin plugin to show the network I/O per VM
+
+
+=head1 CONFIGURATION
+
+parsed environment variables:
+
+  * vmsuffix: part of vm name to be removed
+
+
+=head1 AUTHOR
+
+Copyright (C) 2012 - Igor Borodikhin
+Copyright (C) 2018 - Lars Kruse <devel@sumpfralle.de>
+
+
+=head1 LICENSE
+
+GPLv3
+
+
+=head1 MAGIC MARKERS
+
+ #%# capabilities=autoconf
+ #%# family=contrib
+
+=cut
+"""
 
 import re, os, sys
 from subprocess import Popen, PIPE