wget: Update to 1.9.4

wget: Update to 1.9.4

Excerpts from changelog (Details => http://git.savannah.gnu.org/cgit/wget.git):

"Switch off compression by default

	Gzip compression has a number of bugs which need to be ironed out before we can support it
	by default. Some of these stem from a misunderstanding of the HTTP spec, but a lot of them
	are also due to many web servers not
	being compliant with RFC 7231.

	With this commit, I am marking GZip compression support as experimental
	in GNU Wget pending further investigation and the addition of tests.

	* src/http.c (gethttp): Fix bug that prevented all files from being decompressed

	* src/host.c (sufmatch): Fix to domain matching

	Replace HTTP urls with HTTPS where valid

	Avoid redirecting output to file when tcgetpgrp fails
	* src/log.c (check_redirect_output): tcgetpgrp can return -1 (ENOTTY),
	be sure to check whether a valid controlling terminal exists before
	redirecting. (Fixes: #51181)

	Fix heap overflow in HTTP protocol handling (CVE-2017-13090)

	Fix stack overflow in HTTP protocol handling (CVE-2017-13089)"

Best,
Matthias

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>