[PATCH V2] py3: change explicit conversion from str to pycompat.bytestr

[Yuya Nishihara]

On Fri, 17 Mar 2017 19:14:26 +0530, Rishabh Madan wrote:
> # HG changeset patch
> # User Rishabh Madan <rishabhmadan96 at gmail.com>
> # Date 1489758142 -19800
> #      Fri Mar 17 19:12:22 2017 +0530
> # Node ID 3d6d9294e2247316541942c4bec5186cb5772cd6
> # Parent  a5bad127128d8f60060be53d161acfa7a32a17d5
> py3: change explicit conversion from str to pycompat.bytestr

Queued this, thanks.