Log Message:
nginx-devel: updated to 1.13.6

Changes with nginx 1.13.6                                        10 Oct 2017

    *) Bugfix: switching to the next upstream server in the stream module
       did not work when using the "ssl_preread" directive.

    *) Bugfix: in the ngx_http_v2_module.
       Thanks to Piotr Sikora.

    *) Bugfix: nginx did not support dates after the year 2038 on 32-bit
       platforms with 64-bit time_t.

    *) Bugfix: in handling of dates prior to the year 1970 and after the
       year 10000.

    *) Bugfix: in the stream module timeouts waiting for UDP datagrams from
       upstream servers were not logged or logged at the "info" level
       instead of "error".

    *) Bugfix: when using HTTP/2 nginx might return the 400 response without
       logging the reason.

    *) Bugfix: in processing of corrupted cache files.

    *) Bugfix: cache control headers were ignored when caching errors
       intercepted by error_page.

    *) Bugfix: when using HTTP/2 client request body might be corrupted.

    *) Bugfix: in handling of client addresses when using unix domain
       sockets.

    *) Bugfix: nginx hogged CPU when using the "hash ... consistent"
       directive in the upstream block if large weights were used and all or
       most of the servers were unavailable.