Remove inbound links to sql-createuser

Since CREATE USER is officially an alias for CREATE ROLE other parts of the
documentation should point to CREATE ROLE, not CREATE USER. Most do but I
noticed when looking at CREATE DATABASE that it did not. Further searching
turned up the usage in client-auth.sgml. That one is questionable since we
are indeed talking about LOGIN roles there but we are already pointing to
sql-alterrole instead of sql-alteruser and so changing the create variation
to point to sql-createrole seems warranted.

Attached, and below.

David J.

diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml
index 722f3da813..99921ba079 100644
--- a/doc/src/sgml/client-auth.sgml
+++ b/doc/src/sgml/client-auth.sgml
@@ -998,9 +998,9 @@ omicron bryanh guest1
separate from operating system user passwords. The password for
each database user is stored in the <literal>pg_authid</literal> system
catalog. Passwords can be managed with the SQL commands
- <xref linkend="sql-createuser"> and
+ <xref linkend="sql-createrole"> and
<xref linkend="sql-alterrole">,
- e.g., <userinput>CREATE USER foo WITH PASSWORD 'secret'</userinput>,
+ e.g., <userinput>CREATE ROLE foo WITH LOGIN PASSWORD
'secret'</userinput>,
or the <application>psql</application>
command <literal>\password</literal>.
If no password has been set up for a user, the stored password
diff --git a/doc/src/sgml/ref/create_database.sgml
b/doc/src/sgml/ref/create_database.sgml
index 3e35c776ea..f63f1f92ac 100644
--- a/doc/src/sgml/ref/create_database.sgml
+++ b/doc/src/sgml/ref/create_database.sgml
@@ -45,7 +45,7 @@ CREATE DATABASE <replaceable
class="parameter">name</replaceable>
<para>
To create a database, you must be a superuser or have the special
<literal>CREATEDB</literal> privilege.
- See <xref linkend="sql-createuser">.
+ See <xref linkend="sql-createrole">.
</para>

<para>