minor doc fix - garbage in example of result of unnest

[Pavel Stehule]

Hi

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 7c06afd3ea..3b810c0eb4 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -17821,7 +17821,6 @@ SELECT NULLIF(value, '(none)') ...
  1
  2
 </programlisting>
-        (2 rows in result)
        </para></entry>
       </row>

Regards

Pavel