Minor tag fix to OS X section

docs/xml/installation.xml

 <!-- <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"> -->
-<!-- $Id: installation.xml,v 1.61 2004/02/05 01:12:27 justdave%syndicomm.com Exp $ -->
+<!-- $Id: installation.xml,v 1.62 2004/02/05 01:30:47 justdave%syndicomm.com Exp $ -->
 <chapter id="installing-bugzilla">
   <title>Installing Bugzilla</title>
 
@@ -1495,7 +1495,8 @@ $smtp->quit;
         <filename class="directory">/sw/include</filename> instead of
         <filename class="directory">/usr/lib</filename> and
         <filename class="directory">/usr/include</filename>. When the
-        Perl module config script asks where your libgd is, be sure to tell it
+        Perl module config script asks where your <filename>libgdi</filename>
+        is, be sure to tell it
         <filename class="directory">/sw/lib</filename>.
         </para>
       </note>