doc: mention psql -l uses the 'postgres' database by default

bmomjian · bmomjian · commit e0a0deca3898 · 2018-01-23T18:22:56.000-05:00
Reported-by: Mark Wood Bug: 14912 Discussion: https://postgr.es/m/20171116171735.1474.30450@wrigleys.postgresql.org Author: David G. Johnston Backpatch-through: 10
diff --git a/doc/src/sgml/ref/psql-ref.sgml b/doc/src/sgml/ref/psql-ref.sgml
@@ -283,7 +283,9 @@ EOF
       <listitem>
       <para>
       List all available databases, then exit. Other non-connection
-      options are ignored. This is similar to the meta-command
+      options are ignored. If an explicit database name is not
+      found the <literal>postgres</literal> database, not the user's,
+      will be targeted for connection. This is similar to the meta-command
       <command>\list</command>.
       </para>
       </listitem>
