- Use of application tags for consistency

- Use the word of package instead of port when we talk about
  pkg_add(1)
- Mention that recent versions of Portsnap do not require the user to
  create manually /usr/ports
- Punctuation fix

en_US.ISO8859-1/books/handbook/ports/chapter.sgml

@@ -667,10 +667,10 @@ docbook                     =
       <procedure>
 	<title>Portsnap Method</title>
 
-	<para>&man.portsnap.8; is an alternative system for distributing the
+	<para><application>Portsnap</application> is an alternative system for distributing the
 	  Ports Collection.  It was first included in &os;&nbsp;6.0.  On older
 	  systems, you can install it from <filename
-	  role="package">sysutils/portsnap</filename> port:</para>
+	  role="package">sysutils/portsnap</filename> package:</para>
 
 	<screen>&prompt.root; <userinput>pkg_add -r portsnap</userinput></screen>
 
@@ -679,8 +679,15 @@ docbook                     =
 	  features.</para>
 
 	<step>
-	  <para>Create an empty directory <filename
-	    role="directory">/usr/ports</filename> if it does not exists.</para>
+	  <para>Since &os;&nbsp;6.1-RELEASE and with recent versions
+	    of <application>Portsnap</application> port or package, you
+	    can safely skip this step.  The <filename
+	    role="directory">/usr/ports</filename> will be created
+	    automatically at first use of the &man.portsnap.8; command.
+	    With previous versions of
+	    <application>Portsnap</application>, you will have to
+	    create an empty directory <filename
+	    role="directory">/usr/ports</filename> if it does not exists:</para>
 
 	  <screen>&prompt.root; <userinput>mkdir /usr/ports</userinput></screen>
 	</step>