libcurl 7.62.0 introduced a maximum protocol length of 8, so this test
case failed with `CURLE_URL_MALFORMAT`. While this is lifted to 40 as
of libcurl 7.65.0, and this test case has already been fixed with
commit e27301c[1], we restore the original intention to check for a
`CURLE_UNSUPPORTED_PROTOCOL ` error.
[1] <http://git.php.net/?p=php-src.git;a=commit;h=e27301c7b37f6a1643a0dc1966919bd62a32bc74>