Some cleanup for change of collate and ctype fields to type text

Some cleanup for commit 54637508f87bd5f07fb9406bac6b08240283be3b:
Reformat pg_database.dat to reflect the new field order.  Also update
the corresponding example in bki.sgml.  Reorder the way the fields are
filled in dbcommands.c to correspond to the new order.

doc/src/sgml/bki.sgml

@@ -175,19 +175,20 @@
     will demonstrate the key features:
    </para>
 
-<programlisting>
+<!-- The "slight modification" is the apostrophe in the description. -->
+<programlisting><![CDATA[
 [
 
 # A comment could appear here.
-{ oid =&gt; '1', oid_symbol =&gt; 'TemplateDbOid',
-  descr =&gt; 'database\'s default template',
-  datname =&gt; 'template1', encoding =&gt; 'ENCODING', datcollate =&gt; 'LC_COLLATE',
-  datctype =&gt; 'LC_CTYPE', datistemplate =&gt; 't', datallowconn =&gt; 't',
-  datconnlimit =&gt; '-1', datfrozenxid =&gt; '0',
-  datminmxid =&gt; '1', dattablespace =&gt; 'pg_default', datacl =&gt; '_null_' },
+{ oid => '1', oid_symbol => 'TemplateDbOid',
+  descr => 'database\'s default template',
+  datname => 'template1', encoding => 'ENCODING', datistemplate => 't',
+  datallowconn => 't', datconnlimit => '-1', datfrozenxid => '0',
+  datminmxid => '1', dattablespace => 'pg_default', datcollate => 'LC_COLLATE',
+  datctype => 'LC_CTYPE', datacl => '_null_' },
 
 ]
-</programlisting>
+]]></programlisting>
 
    <para>
     Points to note:

src/backend/commands/dbcommands.c

@@ -570,14 +570,14 @@ createdb(ParseState *pstate, const CreatedbStmt *stmt)
 		DirectFunctionCall1(namein, CStringGetDatum(dbname));
 	new_record[Anum_pg_database_datdba - 1] = ObjectIdGetDatum(datdba);
 	new_record[Anum_pg_database_encoding - 1] = Int32GetDatum(encoding);
-	new_record[Anum_pg_database_datcollate - 1] = CStringGetTextDatum(dbcollate);
-	new_record[Anum_pg_database_datctype - 1] = CStringGetTextDatum(dbctype);
 	new_record[Anum_pg_database_datistemplate - 1] = BoolGetDatum(dbistemplate);
 	new_record[Anum_pg_database_datallowconn - 1] = BoolGetDatum(dballowconnections);
 	new_record[Anum_pg_database_datconnlimit - 1] = Int32GetDatum(dbconnlimit);
 	new_record[Anum_pg_database_datfrozenxid - 1] = TransactionIdGetDatum(src_frozenxid);
 	new_record[Anum_pg_database_datminmxid - 1] = TransactionIdGetDatum(src_minmxid);
 	new_record[Anum_pg_database_dattablespace - 1] = ObjectIdGetDatum(dst_deftablespace);
+	new_record[Anum_pg_database_datcollate - 1] = CStringGetTextDatum(dbcollate);
+	new_record[Anum_pg_database_datctype - 1] = CStringGetTextDatum(dbctype);
 
 	/*
 	 * We deliberately set datacl to default (NULL), rather than copying it

src/include/catalog/pg_database.dat

@@ -14,9 +14,9 @@
 
 { oid => '1', oid_symbol => 'TemplateDbOid',
   descr => 'default template for new databases',
-  datname => 'template1', encoding => 'ENCODING', datcollate => 'LC_COLLATE',
-  datctype => 'LC_CTYPE', datistemplate => 't', datallowconn => 't',
-  datconnlimit => '-1', datfrozenxid => '0',
-  datminmxid => '1', dattablespace => 'pg_default', datacl => '_null_' },
+  datname => 'template1', encoding => 'ENCODING', datistemplate => 't',
+  datallowconn => 't', datconnlimit => '-1', datfrozenxid => '0',
+  datminmxid => '1', dattablespace => 'pg_default', datcollate => 'LC_COLLATE',
+  datctype => 'LC_CTYPE', datacl => '_null_' },
 
 ]