Log Message:
wget: update to 1.21.

* Changes in Wget 1.21

** Improve the number of translated strings

** Remove all uses of alloca
   In some places the length of untrusted strings has been used, e.g.
   strings from the command line or from remote.

** Fix buffer overflows in progress bar code in some locales

** Fix two null pointer accesses

** Amend cookie file header to be recognized by the 'file' command

** Post Handshake Authentication for OpenSSL

** Require gettext version 0.19.3+

** Add configure flags --enable-fsanitize-ubsan, --enable-fsanitize-asan
   and --enable-fsanitize-msan for gcc and clang

** Make several smaller fixes, enhance fuzzing, enhance building