[PATCH STABLE v2] py3: force bytestr conversion of "reason" in scmutil.callcatch()

[Yuya Nishihara]

On Wed, 18 Dec 2019 20:19:43 +0100, Denis Laxalde wrote:
> # HG changeset patch
> # User Denis Laxalde <denis at laxalde.org>
> # Date 1576696641 -3600
> #      Wed Dec 18 20:17:21 2019 +0100
> # Branch stable
> # Node ID 33249635134f8c3fdcd79b1a0da15880a2f57650
> # Parent  743c69b393326ab82383638c1fed669794ac0ec1
> py3: force bytestr conversion of "reason" in scmutil.callcatch()

Queued for stable, thanks.