docs: Improve pg_isready details about username/dbname

Report by Erik Rijkers

Backpatch through 9.4

diff --git a/doc/src/sgml/ref/pg_isready.sgml b/doc/src/sgml/ref/pg_isready.sgml
index cadfe8eb08183e0aab7543aa3f6570226cce62c6..2ee79a0bbebb46b4d4287776868cded24fc9b710 100644 (file)
--- a/doc/src/sgml/ref/pg_isready.sgml
+++ b/doc/src/sgml/ref/pg_isready.sgml
@@ -170,8 +170,9 @@ PostgreSQL documentation
   Notes
 
   
-   The options --dbname and --username can be used to avoid gratuitous
-   error messages in the logs, but are not necessary for proper functionality.
+   It is not necessary to supply correct user name, password, or database
+   name values to obtain the server status; however, if incorrect values
+   are provided, the server will log a failed connection attempt.