[Development] Undeprecating QString::null

[Uwe Rathmann]

On Tue, 16 Jan 2018 18:38:48 +0100, Kevin Kofler wrote:

> So just use QString(), or define your own static instance of it if you
> really want to microoptimize it that much.

No it is simply that the first version of Qwt was for Qt 1.2 ( before 
QString even existed ) and during a history of almost 20 years there are 
leftovers.

I had missed the point, when the static instance had been replaced - 
that's why I was erroneously concerned about BC breaks.

Uwe