docs/76750: Fix wording about what version of FreeBSD PF can be used in.

[Brad Davis]

>Number:         76750
>Category:       docs
>Synopsis:       Fix wording about what version of FreeBSD PF can be used in.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 27 12:00:36 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Brad Davis
>Release:        FreeBSD 4.10-STABLE i386
>Organization:
>Environment:
System: FreeBSD mccaffrey.house.so14k.com 4.10-STABLE FreeBSD 4.10-STABLE #0: Fri May 28 08:02:41 MDT 2004 root at mccaffrey.house.so14k.com:/usr/obj/usr/src/sys/MCCAFFREY i386
>Description:
	Fix wording about what version of FreeBSD PF can be used in.
>How-To-Repeat:
>Fix:
--- doc-ori/en_US.ISO8859-1/books/handbook/firewalls/chapter.sgml       Thu Jan 27 02:39:18 2005
+++ doc/en_US.ISO8859-1/books/handbook/firewalls/chapter.sgml   Thu Jan 27 04:46:22 2005
@@ -206,9 +206,13 @@
       not be made part of this handbook firewall section as that would
       just be duplicated effort.</para>
 
-    <para>For older 5.X version of &os; you can find
-      <acronym>PF</acronym> in the &os; ports collection here:
+    <para>For versions of &os; younger than 5.0 and older than 5.3 you
+      can find <acronym>PF</acronym> in the &os; ports collection here:
       <filename role="package">security/pf</filename>.</para>
+
+    <note>
+      <para><acronym>PF</acronym> is not avaliable for &os; 4.</para>
+    </note>
 
     <para>More info can be found at the PF for &os; web site: <ulink
       url="http://pf4freebsd.love2party.net/"></ulink>.</para>
>Release-Note:
>Audit-Trail:
>Unformatted: