MFH: r447740

• www/nginx-devel: Update from 1.13.3 to 1.13.4
• pet Portlint

• Changelog: *) Feature: the ngx_http_mirror_module.
  
  *) Bugfix: client connections might be dropped during configuration testing when using the "reuseport" parameter of the "listen" directive on Linux.
  
  *) Bugfix: request body might not be available in subrequests if it was saved to a file and proxying was used.
  
  *) Bugfix: cleaning cache based on the "max_size" parameter did not work on Windows.
  
  *) Bugfix: any shared memory allocation required 4096 bytes on Windows.
  
  *) Bugfix: nginx worker might be terminated abnormally when using the "zone" directive inside the "upstream" block on Windows.

Approved by: osa (maintainer)
Approved by: miwi (mentor)
Differential Revision: https://reviews.freebsd.org/D11951

Approved by: ports-secteam (feld)