[PATCH 1 of 2] tests: update lockdelay.py to handle the `wait` argument

[Yuya Nishihara]

On Fri, 11 Sep 2020 12:34:00 +0530, Pulkit Goyal wrote:
> # HG changeset patch
> # User Pulkit Goyal <7895pulkit at gmail.com>
> # Date 1599736900 -19800
> #      Thu Sep 10 16:51:40 2020 +0530
> # Node ID 3095d36efcaf9ce835249c9312e892b0d54aac78
> # Parent  64de86fd0984ff1e2306de52849be7ebf7dcfd25
> # EXP-Topic tags-fix
> tests: update lockdelay.py to handle the `wait` argument

Queued this, thanks.