Doc: fix mention of psql's minimum supported server version.

Commit cf0cab868 removed describe.c's support for pre-9.2 server
versions, but neglected to update this documentation reference.

Discussion: https://postgr.es/m/GV0P278MB041917EB3E2FE8704B5AE2C6D2DC9@GV0P278MB0419.CHEP278.PROD.OUTLOOK.COM

diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
index 5fc6b1034aeb08ff454c0aab227411bf017bc89f..47bf3342a59d2505acedf56302d5bca0938490e4 100644 (file)
--- a/doc/src/sgml/ref/psql-ref.sgml
+++ b/doc/src/sgml/ref/psql-ref.sgml
@@ -4914,7 +4914,7 @@ PSQL_EDITOR_LINENUMBER_ARG='--line '
        or an older major version.  Backslash commands are particularly likely
        to fail if the server is of a newer version than <application>psql</application>
        itself.  However, backslash commands of the <literal>\d</literal> family should
-       work with servers of versions back to 7.4, though not necessarily with
+       work with servers of versions back to 9.2, though not necessarily with
        servers newer than <application>psql</application> itself.  The general
        functionality of running SQL commands and displaying query results
        should also work with servers of a newer major version, but this cannot