Re: Corrected documentation of data type for the logical replication message formats.

I think the patch maybe is not quite correct for all the flags.

For example,

@@ -7607,44 +7615,44 @@ are available since protocol version 3.
 <varlistentry>
 <term>Int8</term>
 <listitem><para>
-                Flags; currently unused (must be 0).
+                Flags (uint8); currently unused.
 </para></listitem>
 </varlistentry>

AFAIK, even though the flags are "unused", the code still insists that
most (or all? Please check the code) of these flag values MUST be 0,
so I think that this zero value requirement ought to be indicated in
the docs using the "Int8(0)" convention [1]. For example,

BEFORE
Int8
Flags (uint8); currently unused.

AFTER
Int8(0)
Flags (uint8); currently unused.

------
[1] https://www.postgresql.org/docs/devel/protocol-message-types.html

Kind Regards,
Peter Smith.
Fujitsu Australia.