Update to waf 2.0.19?

[Chris Johns]

> On 26 Feb 2020, at 6:05 pm, Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:
>> On 26/02/2020 03:22, Chris Johns wrote:
>>> On 25/2/20 7:02 pm, Sebastian Huber wrote:
>>> Hello,
>>> 
>>> in order to close this bug:
>>> 
>>> https://devel.rtems.org/ticket/3569
>>> 
>>> I would like to update waf to the latest version 2.0.19 in:
>>> 
>>> rtems-docs
>>> rtems-tools
>>> rtems-libbsd
>>> rtems-examples
>>> 
>> What testing have you done and which hosts?
> 
> I haven't done a lot of testing. I tried to build everything on my Linux machine. I checked also the rtems-tools on mingw64 and FreeBSD. I just hope that the change from 2.0.18 to 2.0.19 fixed only bugs.

Thanks, this looks ok then. I suggest we do this and then see what happens. Thomas is responsive and that is a good thing. 

Chris