Doc: Correct deduplicate_items varlistentry id.

Use a varlistentry id for the deduplicate_items storage parameter that
is derived from the name of the parameter itself.

This oversight happened because the storage parameter was renamed
relatively late during the development of the patch that became commit
0d861bbb.

diff --git a/doc/src/sgml/ref/create_index.sgml b/doc/src/sgml/ref/create_index.sgml
index 05bda6f11d1d147f4b7fdb233d1e05436fab0031..f0fe6fb874bef84a5394cadd34d294024f01aad2 100644 (file)
--- a/doc/src/sgml/ref/create_index.sgml
+++ b/doc/src/sgml/ref/create_index.sgml
@@ -399,7 +399,7 @@ CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ [ IF NOT EXISTS ] <replaceable class=
    </para>
 
    <variablelist>
-   <varlistentry id="index-reloption-deduplication" xreflabel="deduplicate_items">
+   <varlistentry id="index-reloption-deduplicate-items" xreflabel="deduplicate_items">
     <term><literal>deduplicate_items</literal> (<type>boolean</type>)
      <indexterm>
       <primary><varname>deduplicate_items</varname> storage parameter</primary>