Bug in texlive.tlpdb

[Karl Berry]

            execute AddHyphen 	name=arabic 	lefthyphenmin= 	righthyphenmin= 
    file=zerohyph.tex 	file_patterns=

    where, the `lefthyphenmin` and `righthyphenmin` parameter in it 
    shouldn't be empty. 

It does look strange/wrong.

    Instead, it should be 2 and 3. 

Well, 2 and 3 are the values for US English (and not much else).  It
makes no difference what the numbers are for zerohyph, since its whole
point is to eliminate hyphenation (empty \patterns).

    Also, is this the correct place to report them?

tex-hyphen at tug.org in this case, as those language tlpsrc files are
generated (https://github.com/hyphenation/tex-hyphen). I forwarded.

Thanks for the report. --best, karl.