[tlbuild] wget-1.20.1 for tl19

[Karl Berry]

By the way, there is a new version of GNU wget to try
(https://ftp.gnu.org/gnu/wget/wget-1.20.1.tar.gz), for those platforms
where we provide binaries.

If there are problems, of course it's good to report them (bug-wget at
gnu.org), but there's nothing critical in the new version and we can
stick with the existing binaries. --thanks, karl.

wget.amd64-freebsd
wget.amd64-netbsd
wget.exe
wget.i386-freebsd
wget.i386-netbsd
wget.i386-solaris
wget.sparc-solaris
wget.x86_64-darwin
wget.x86_64-darwinlegacy
wget.x86_64-solaris