src: fix invalid memory access in http_parse_host
src: fix invalid memory access in http_parse_host

http_parse_host() depends on `u->field_data[UF_HOST]`, but this
if() allowed the method to be called if only
`u->field_data[UF_SCHEMA]` was set, resulting in use of
unintialized pointers.

PR-URL: https://github.com/joyent/http-parser/pull/246
Reviewed-By: Fedor Indutny <e39d94bae70283f13d24c278e04952d6dad9384b@indutny.com>

OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad