Log Message:
nginx-devel: updated to 1.17.4

Changes with nginx 1.17.5:

*) Feature: now nginx uses ioctl(FIONREAD), if available, to avoid
   reading from a fast connection for a long time.

*) Bugfix: incomplete escaped characters at the end of the request URI
   were ignored.

*) Bugfix: "/." and "/.." at the end of the request URI were not
   normalized.

*) Bugfix: in the "merge_slashes" directive.

*) Bugfix: in the "ignore_invalid_headers" directive.
   Thanks to Alan Kemp.

*) Bugfix: nginx could not be built with MinGW-w64 gcc 8.1 or newer.