Typo

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@9869 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter07/network.xml

@@ -165,7 +165,7 @@ EOF</userinput></screen>
     gateway IP address, if one is present. If not, then comment out the
     variable entirely.</para>
 
-    <para>The <envar>PREFIX</envar> variable containis the number of
+    <para>The <envar>PREFIX</envar> variable contains the number of
     bits used in the subnet. Each octet in an IP address is 8 bits. If the
     subnet's netmask is 255.255.255.0, then it is using the first three octets
     (24 bits) to specify the network number. If the netmask is 255.255.255.240,