Fix pg_waldump docs.

Before 52b5568, the recently added -l option was short for --relation.
We changed it to -R, but we forgot to update one place in the
documentation.

Author: Japin Li <japinli@hotmail.com>
Discussion: https://postgr.es/m/MEYP282MB1669435CFBE57CBBA5116C66B61D9%40MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM

diff --git a/doc/src/sgml/ref/pg_waldump.sgml b/doc/src/sgml/ref/pg_waldump.sgml
index 4e86f44c5b3bef01e94ccd458ab72219b8d479a8..1a05af5d9721d2c6cdbcbe6951c2d440f82b9889 100644 (file)
--- a/doc/src/sgml/ref/pg_waldump.sgml
+++ b/doc/src/sgml/ref/pg_waldump.sgml
@@ -85,7 +85,7 @@ PostgreSQL documentation
        <para>
         Only display records that modify the given block.  The relation must
         also be provided with <option>--relation</option> or
-        <option>-l</option>.
+        <option>-R</option>.
        </para>
       </listitem>
      </varlistentry>