Log Message:
nginx-devel: updated to 1.17.7

Changes with nginx 1.17.7

*) Bugfix: a segmentation fault might occur on start or during
   reconfiguration if the "rewrite" directive with an empty replacement
   string was used in the configuration.

*) Bugfix: a segmentation fault might occur in a worker process if the
   "break" directive was used with the "alias" directive or \ 
with the
   "proxy_pass" directive with a URI.

*) Bugfix: the "Location" response header line might contain garbage if
   the request URI was rewritten to the one containing a null character.

*) Bugfix: requests with bodies were handled incorrectly when returning
   redirections with the "error_page" directive; the bug had appeared in
   0.7.12.

*) Bugfix: socket leak when using HTTP/2.

*) Bugfix: a timeout might occur while handling pipelined requests in an
   SSL connection; the bug had appeared in 1.17.5.

*) Bugfix: in the ngx_http_dav_module.