Whitespace cleanup

* remove trailing whitespace
* remove empty lines at the end of files

plugins/system/blockhosts

@@ -2,7 +2,7 @@
 # Plugin to monitor the number of hosts denied by BlockHosts
 #
 # $Log$
-# based on: 
+# based on:
 # denyhosts plugin
 # Revision 1.0  2009/06/05 16:00:00 tjansson
 #
@@ -11,7 +11,7 @@
 # Parameters:
 #       config   (required)
 #       autoconf (optional - used by munin-config)
- 
+
 LOG=/etc/hosts.allow
 
 if [ "$1" = "autoconf" ]; then
@@ -23,9 +23,9 @@ if [ "$1" = "autoconf" ]; then
                 exit 1
         fi
 fi
- 
+
 if [ "$1" = "config" ]; then
- 
+
         echo 'graph_title Hosts denied by BlockHosts'
         echo 'graph_args -l 0'
         echo 'graph_vlabel denied hosts '
@@ -34,6 +34,6 @@ if [ "$1" = "config" ]; then
         echo 'HostsWatched.label Hosts watched by BlockHosts'
 	exit 0
 fi
- 
+
 echo HostsDenied.value  `egrep -c " : deny" $LOG`
 echo HostsWatched.value `egrep -c "#bh: ip:" $LOG`