[tex4ht] [bug #345] regression testing is needed

[Michal Hoftich]

Hi Deimi, 

> Hi Michal, 
> 
> Very good.  I've removed  l3build files from the repo.  
> Starting from the scratch .... :)
> 

no, you misunderstood me, I meant the opposite, that it can be useful
with some tweaking :) Maybe it sounded in a different way, I was quite
tired when I wrote that, so my writing was maybe even more unclear than
usual.

Best,
Michal