[Bug-wget] --http2=off causes Segmentation fault but ./configure --without-libnghttp2 does not

[Jeffrey Fetterman]

So I wanted to see how scraping a large site compared with multiplexing
off. I used the -http2=off parameter, but I got a segfault.

So I decided I'd configure wget2 without the http2 library and just try the
same command again (without -http2=off since it wasn't compiled with it
anyway) and it worked just fine.

(Also.. it does seem like wget2 is faster without http2, for the site full
of large pdfs I'm scraping anyway.)