[MacPorts] #50981: nghttp2 @1.8.0_1: update to 1.9.1

[MacPorts]

#50981: nghttp2 @1.8.0_1: update to 1.9.1
---------------------------------+--------------------------------
 Reporter:  mschamschula@…       |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.4
 Keywords:  haspatch maintainer  |       Port:  nghttp2
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 nghttp2 has been updated to version 1.9.1. New this version:

 * nghttpx: Fix bug that backend tls keyword did not work with -s option
 * nghttpx: Fix handing stream after connection check was failed

 New in version 1.9.0:

 * lib: Add nghttp2_error_callback to tell application human readable error
 message
 * lib: Reference counted HPACK name/value pair, adding
 nghttp2_on_header_callback2
 * lib: Add nghttp2_option_set_no_auto_ping_ack() option
 * lib: Add nghttp2_http2_strerror() to return HTTP/2 error code string
 * build: Makefile.msvc enhancements
 * build: Lower libev version requirement
 * build: cmake build support
 * asio: Fix bug that server event loop breaks with exception
 * integration: Disable tests that sometimes break randomly on travis
 integration: do not use recursive target
 * h2load: Fix bug that it did not try to connect to server again
 * h2load: Fix bug that initial max concurrent streams was too large
 * nghttpx: Memcached connection encryption with tls keyword
 * nghttpx: Enable/disable TLS per frontend address
 * nghttpx: Configure TLS per backend routing pattern
 * nghttpx: Add --error-page option to set custom error pages
 * nghttpx: Add wildcard host routing
 * nghttpx: Change read timeout reset timing
 * nghttpx: Don't push if Link header field includes no push
 * nghttpx: Deprecate backend-http1-connections-per-host in favor of
 backend-connections-per-host
 * nghttpx: Restructure mode settings, removing --http2-bridge, --client,
 and --client-proxy options
 * nghttpx: Deprecate backend-http1-connections-per-frontend in favor of
 backend-connections-per-frontend
 * nghttpx: Don't share session which is already in draining state
 * nghttpx: Effectively disable backend HTTP/2 connection flow control
 * nghttpx: Add --frontend-http2-max-concurrent-streams and --backend-http2
 -max-concurrent-streams, and deprecate --http2-max-concurrent-streams
 option
 * nghttpx: Deprecate --backend-http2-connections-per-worker option
 * nghttpx: Share TLS session cache between HTTP/2 and HTTP/1 backend
 * nghttpx: Rewrite backend HTTP/2 connection coalesce strategy

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Ticket URL: <https://trac.macports.org/ticket/50981>
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