catalogs.sgml.diff

--- doc/src/sgml/catalogs.sgml.orig	2017-01-10 03:40:52.649761572 +0100
+++ doc/src/sgml/catalogs.sgml	2017-01-10 03:53:13.408298695 +0100
@@ -3598,7 +3598,7 @@
       <entry><type>int2</type></entry>
       <entry></entry>
       <entry>The number of key columns in the index. "Key columns" are ordinary
-      index columns in contrast with "included" columns.</entry>
+      index columns (as opposed to "included" columns).</entry>
      </row>
 
      <row>