[PATCH 03 of 10 py3] obsolete: use bytestr() instead of str() so the node is bytes on py3

[Yuya Nishihara]

On Tue, 01 Aug 2017 16:34:31 -0400, Augie Fackler wrote:
> # HG changeset patch
> # User Augie Fackler <augie at google.com>
> # Date 1500907059 14400
> #      Mon Jul 24 10:37:39 2017 -0400
> # Node ID f50da59f7977c7d796850b95ac7c80a4fd92bd18
> # Parent  8b22554199879f80a13ddee556bc540ddcb65a94
> obsolete: use bytestr() instead of str() so the node is bytes on py3
> 
> I'm not sure this is right, since this should either be bytes or str
> to match what's going on in the revlog layer.

Sounds like a bug of revlog. 'prec' should be a binary node id, which can't
be a unicode string.

> -        marker = (str(prec), tuple(succs), int(flag), metadata, date, parents)
> +        prec = bytes(pycompat.bytestr(prec))
> +        marker = (prec, tuple(succs), int(flag), metadata, date, parents)