MFH: r508898

Update to 1.16.1

Security: when using HTTP/2 a client might cause excessive memory
consumption and CPU usage (CVE-2019-9511, CVE-2019-9513,
CVE-2019-9516)

Security: 87679fcb-be60-11e9-9051-4c72b94353b5
Sponsored by: Netzkommune GmbH

Approved by: ports-secteam (joneum)