Update the arguments passed to swapon on FreeBSD 10.0 and later to be…

… '-aL'

instead of '-aq' since after r255265 the option file= implies late

Differential Revision:	D3429
Submitted by:	Michael Koch <charlie8913@gmail.com>
Approved by:	hrs@ (mentor)

en_US.ISO8859-1/books/handbook/config/chapter.xml

@@ -2807,7 +2807,7 @@ kern.maxvnodes: 100000</screen>
 	    <para>Swap space will be added on system startup.  To add
 	      swap space immediately, use &man.swapon.8;:</para>
 
-	    <screen>&prompt.root; <userinput>swapon -aq</userinput></screen>
+	    <screen>&prompt.root; <userinput>swapon -aL</userinput></screen>
 	  </step>
 	</procedure>
       </example>