Convert another SGML ID to lower case

The mostly automated conversion in
1ff01b3902cbf5b22d1a439014202499c21b2994 missed this one because of the
unusual whitespace.

diff --git a/doc/src/sgml/release-9.0.sgml b/doc/src/sgml/release-9.0.sgml
index 7a8db62b8d8bf551cf96bcbcb279106f135ebd6b..d5b3239c30d57920809301c099a64fbc290a5a60 100644 (file)
--- a/doc/src/sgml/release-9.0.sgml
+++ b/doc/src/sgml/release-9.0.sgml
@@ -7853,7 +7853,7 @@
 
     <listitem>
      <para>
-      <link linkend="SQL-EXPLAIN "><command>EXPLAIN</command></link> enhancements.
+      <link linkend="sql-explain"><command>EXPLAIN</command></link> enhancements.
       The output is now available in JSON, XML, or YAML format, and includes
       buffer utilization and other data not previously available.
      </para>