Whitespace cleanup

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

plugins/powermta/powermta_vmta_recpients

@@ -39,4 +39,4 @@ domain=`echo "${queue[7]}" | awk -F" " '{print $1}' | cut -d/ -f1 | sed -e 's/[\
 recpts=${queue[8]}
 conns=${queue[10]}
 echo $domain'.value '$recpts
-done 
+done