Whitespace cleanup

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

plugins/vpn/openvpn_as_mtime

@@ -36,7 +36,7 @@ GPLv2
 
 
 if [ "$1" = "autoconf" ]; then
-	echo yes 
+	echo yes
 	exit 0
 fi
 
@@ -62,7 +62,7 @@ if [ "$1" = "config" ]; then
         echo "time.label Users"
         echo "time.type GAUGE"
         echo "time.min 0"
-	
+
 	exit 0
 fi
 
@@ -78,5 +78,5 @@ fi
 
 # Total is total time between number of users between 60 for give it in minutes
 echo "time.value $(($(($SUM / $TOTU)) / 60))"
-	
+