tests: fix main symbol duplication

[Leonid Bobrov]

On Fri, Feb 08, 2019 at 12:51:23PM +0200, Pekka Paalanen wrote:
> Weird indeed. Did you manually edit the patch, or copy & paste it?
> 

Copied & pasted it, next time I'll include them in MIME

> > I don't know how to do that, besides I have no intention to license code
> > I submit, so you are completely free to use it.
> 
> The way you do that is you put
> 
> Signed-off-by: Your Real Name <email at address>
> 
> at the end of each commit message. You can check almost any existing
> Wayland commit for an example.
> 

Ok.

> If you do not license your code under the very license the project is
> using, then we cannot take your contributions at all. No license means
> no-one can do anything with it, particularly redistribute it. I once saw
> someone say: the copyright law makes no difference between your patch
> and the latest Disney movie.
> 
> No license: no rights.
> 
> "Feel free to use it" is not a license. We really do need a valid
> license for all contributions. The way that happens is that people
> check the project license (in this case it is duplicated in the top of
> almost every source file, and in the COPYING file at the root
> directory) and agree to that. Putting your S-o-b in the commit message
> is an explicit indicator that you agree, but also the fact that you
> sent a patch at all can also be taken as an agreement.
> 
> 
> Thanks,
> pq
> 

Ok, got it.