Remove EOL whitespace.

Translators: this is a whitespace only commit.

en_US.ISO8859-1/articles/dialup-firewall/article.sgml

@@ -34,19 +34,19 @@
 
   <sect1 id="preface">
     <title>Preface</title>
-    
+
     <para>Dialup Firewalling with FreeBSD</para>
 
      <para>This document covers the process that is required to setup
-       firewalling with FreeBSD when an IP address is assigned dynamically  
+       firewalling with FreeBSD when an IP address is assigned dynamically
        by your ISP.  While every effort has been made to make this document
        as informative and correct as possible, you are welcome to mail your
-       comments/suggestions to the <email>marcs@draenor.org</email>.</para>    
+       comments/suggestions to the <email>marcs@draenor.org</email>.</para>
    </sect1>
 
   <sect1 id="kernel">
     <title>Kernel Options</title>
-    
+
     <para>The first thing you will need to do is recompile your kernel.
       If you need more information on how to recompile the kernel,
       then the best place to start is the <ulink
@@ -113,7 +113,7 @@
       </varlistentry>
      </variablelist>
 
-    <para>Do not reboot once you have recompiled the kernel. Hopefully, 
+    <para>Do not reboot once you have recompiled the kernel. Hopefully,
       we will only need to reboot once to complete the installation of the
       firewall.</para>
   </sect1>
@@ -121,27 +121,27 @@
   <sect1 id="rcconf">
     <title>Changing <filename>/etc/rc.conf</filename> to load the
       firewall</title>
-    
+
     <para>We now need to make some changes to
       <filename>/etc/rc.conf</filename> in order to tell it about the
       firewall.  Simply add the following lines:</para>
-    
+
     <programlisting>firewall_enable="YES"
 firewall_script="/etc/firewall/fwrules"
 natd_enable="YES"
 natd_interface="tun0"
 natd_flags="-dynamic"</programlisting>
 
-    <para>For more information on the functions of these statements take 
+    <para>For more information on the functions of these statements take
      a look at <filename>/etc/defaults/rc.conf</filename> and read
       &man.rc.conf.5;</para>
   </sect1>
-  
+
   <sect1>
     <title>Disable PPP's network address translation</title>
-    
+
     <para>You may already be using PPP's built in network address
-      translation (NAT).  If that is the case then you will have to disable 
+      translation (NAT).  If that is the case then you will have to disable
       it, as these examples use &man.natd.8; to do the same.</para>
 
     <para>If you already have a block of entries to
@@ -152,7 +152,7 @@ ppp_mode="auto"
 ppp_nat="YES"
 ppp_profile="<replaceable>profile</replaceable>"</programlisting>
 
-    <para>If so, remove the <literal>ppp_nat="YES"</literal> line.  You will 
+    <para>If so, remove the <literal>ppp_nat="YES"</literal> line.  You will
       also need to remove any <literal>nat enable yes</literal> or
       <literal>alias enable yes</literal> in
       <filename>/etc/ppp/ppp.conf</filename>.</para>
@@ -160,7 +160,7 @@ ppp_profile="<replaceable>profile</replaceable>"</programlisting>
 
   <sect1 id="rules">
     <title>The ruleset for the firewall</title>
-    
+
     <para>We are nearly done now.  All that remains now is to define
       the firewall rules and then we can reboot and the firewall
       should be up and running.  I realize that everyone will want
@@ -188,7 +188,7 @@ ppp_profile="<replaceable>profile</replaceable>"</programlisting>
     <programlisting># Firewall rules
 # Written by Marc Silver (marcs@draenor.org)
 # http://draenor.org/ipfw
-# Freely distributable 
+# Freely distributable
 
 
 # Define the firewall command (as in /etc/rc.firewall) for easy
@@ -236,15 +236,15 @@ $fwcmd add 65435 deny log ip from any to any</programlisting>
 
     <para>You now have a fully functional firewall that will allow on
       connections to ports 80 and 22 and will log any other connection
-      attempts. Now, you should be able to safely reboot and your firewall 
-      should come up fine. If you find this incorrect in anyway or experience 
-      any problems, or have any suggestions to improve this page, please 
+      attempts. Now, you should be able to safely reboot and your firewall
+      should come up fine. If you find this incorrect in anyway or experience
+      any problems, or have any suggestions to improve this page, please
       email me.</para>
   </sect1>
 
   <sect1>
     <title>Questions</title>
-    
+
     <qandaset>
       <qandaentry>
 	<question>