Revision 400218

Update uriparser to version 0.8.4.

It looks like the latest release doesn't build because of a missing
#include. The source file depends on AF_INET and AF_INET6, which of
course requires <sys/socket.h>.

Submitted by: Torsten Zühlsdorff
PR: 203972
Differential Revision:	https://reviews.freebsd.org/D4001