Whitespace cleanup

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

plugins/network/nsd3

@@ -15,17 +15,17 @@
 	  (http://nlnetlabs.nl/projects/nsd/)
 
 =head1 CONFIGURATION
-	
+
 	The plugin needs access to the nsd logfile and the nsd pid file to
 	force the running nsd process to write the current statistics.
 
-	Tip: To see if it's already set up correctly, just run this plugin 
+	Tip: To see if it's already set up correctly, just run this plugin
 	with the parameter "autoconf".  If you get a "yes", everything should
 	work like a charm already.
 
 	This configuration section shows the defaults of the plugin:
 
-	The stats line is a set of space-separated values that you wish to 
+	The stats line is a set of space-separated values that you wish to
 	retrieve from NSD.  The format is VALUE=Caption.  For spaces in a
 	caption value, replace them with an underscore (_).
 
@@ -34,7 +34,7 @@
         	env.pidfile /var/run/nsd3/nsd.pid
 		env.stats "A=A AAAA=AAAA MX=MX PTR=PTR TYPE252=AXFR SNXD=NXDOMAIN RQ=Total_Successful"
 
-	If you need to set a user for the logfile to be readable, and most 
+	If you need to set a user for the logfile to be readable, and most
 	importantly, the process to receive the signal, you may specify it.
 	For example:
 
@@ -42,29 +42,29 @@
 		user nsd
 
 =head1 INTERPRETATION
-	
-	The plugin shows the number of queries that nsd has received, 
+
+	The plugin shows the number of queries that nsd has received,
 	averaged over a period to gain the number of queries per second.
 	For most servers, these values will be very low.  In the event
 	of a misconfiguration, the plugin will return undefined values.
 
 =head1 MAGIC MARKERS
-	
+
 	#%# family=auto
 	#%# capabilities=autoconf
 
 =head1 VERSION
 
 	v1.0.1
-	
+
 =head1 AUTHOR
 
 	J.T.Sage <jtsage@gmail.com>
-	
+
 =head1 LICENSE
-	
+
 	GPLv2
-	
+
 =cut
 """