Fix newly-introduced documentation typo.

doc/src/sgml/ref/create_function.sgml

@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.43.2.2 2007/04/20 03:10:57 tgl Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.43.2.3 2007/04/23 16:53:15 neilc Exp $
 -->
 
 <refentry id="SQL-CREATEFUNCTION">
@@ -458,7 +458,7 @@ Point * complex_to_point (Complex *z)
     <varname>search_path</> should be set to exclude any schemas
     writable by untrusted users.  This prevents
     malicious users from creating objects that mask objects used by the
-    function.  Particularly important is in this regard is the
+    function.  Particularly important in this regard is the
     temporary-table schema, which is searched first by default, and
     is normally writable by anyone.  A secure arrangement can be had
     by forcing the temporary schema to be searched last.  To do this,