Changes since version 3.1-dev11 :

Christopher Faulet (2):
      BUG/MEDIUM: promex: Fix dump of extra counters
      CLEANUP: quic: Remove the useless directive "tune.quic.backend.max-idle-timeou"

Frederic Lecaille (2):
      MINOR: quic: Help diagnosing malformed probing packets
      BUG/MINOR: quic: fix malformed probing packet building

William Lallemand (1):
      MINOR: startup: tune.renice.{startup,runtime} allow to change priorities

Willy Tarreau (8):
      BUILD: import/mt_list: support building with TCC
      BUILD: compiler: define __builtin_prefetch() for tcc
      DOC: config: document connection error 44 (reverse connect failure)
      CLEANUP: connection: properly name the CO_ER_SSL_FATAL enum entry
      DEBUG: cli: support closing "hard" using close() in addition to fd_delete()
      MINOR: connection: add more connection error codes to cover common errno
      MINOR: rawsock: set connection error codes when returning from recv/send/splice
      MINOR: connection: add new sample fetch functions fc_err_name and bc_err_name