[tlbuild] [lcdf-typetools] Please fix libefont/otffvar.cc

[Karl Berry]

Hi Andreas,

    Please fix the single use of the 'nullptr' keyword in 

Indeed. Do you know what it should be replaced by?

Anyway, it's Eddie who needs to know. He's not on this list. Please
report at https://github.com/kohler/lcdf-typetools/issues. (But I'm fine
with fixing it in TL, if your or someone can tell me how to fix it :),
if a new release does not come soon.) --thanks, karl.