[PATCH] app/testpmd: remove useless pointer checks

[Thomas Monjalon]

24/03/2022 17:15, David Marchand:
> Parameters to this static helper can't be NULL.
> str has already been dereferenced in caller.
> dst and size point to variable in stack.

The same function is copy/pasted in several places.
Why simplifying only this one? because of its static nature?

Shouldn't we make it a common function as other string helpers?