BUG #15444: Problem running post-install step autostart

The following bug has been logged on the website:

Bug reference:      15444
Logged by:          Uwe Noack
Email address:      noack@t-online.de
PostgreSQL version: 11.0
Operating system:   Windows 10 54bit german
Description:

Hello,
I get the following error during the installation of version 11:
Problem running post-install step. Installation may not complete correctly
Error running C:\PostgreSQL/pgc config pg11 --autostart on: usage: 
usage: config-pg11.py [-h] [--port PORT]
[--autostart={on,off}]
                    [--datadir DATADIR] [--logdir LOGDIR]
                    [--svcname SVCNAME]
config-pg11.py: error: argument -- autostart: expected one argument
regards, Uwe