* josevalim/edoc/no-more-inets/OTP-15999/PR-2317:
  system: Remove special handling of EDoc in otp_SUITE.
  Remove inets dependency from edoc

* sverker/re-enable-big-creation/OTP-15603:
  doc: Add links between dist flags and external tags (DTD updated)
  erts: Fix docs for new pid,port,ref external tags
  erts: Document new EPMD response ALIVE2_X_RESP
  erl_interface: Support 32-bit creation local cnode
  jinterface: Remove old encoding of pid,port,refs
  epmd: Support 32-bit creation values in local node
  erl_interface: Remove old encoding of pid,port,refs
  erts: Remove old encoding of pids, ports and refs
  erts: Make DFLAG_BIG_CREATION mandatory

Example:
    export ERL_AFLAGS=-test
    erl dummy_param

In the above example, the dummy_param would be interpreted
as an argument to -test, and not as a separate argument as
it should.

This reverts revert-commit d293c3ff700c1a0992a32dc3da9ae18964893c23.

* lukas/OTP-22-rc2/misc-fixes/OTP-15773:
  erts: Yield correctly when iterating over distr exit messages
  erts: Fix cerl -rr to use correct etp file
  erts: Fix etp-process-info to print exiting and free processes
  tools: Adjust instrument abort tc to better trigger faults
  erts: Fix cleanup of message factory undo
  erts: Make dump_SUITE:free_dump not dump via rpc
  erts: Add extra debugging to dist frag testcases
  erts: Run smaller dist frag test to 32 bit machines
  erl_docgen: Remove accidentally merged debug printout
  erts: Fix z_SUITE to always look for cerl in ERL_TOP
  otp: make top Makefile app target respect TYPE variable
  vxworks: Make vxworks configure use environment CFLAGS
  erts: Make erts_free debug failure easier to diagnose
  erts: Fix gcc warning in to_erl

If it cannot be found in the daily build dir, we try ERL_TOP
incase it is there.

This reverts commit bd8f6106d44a58c261920eef72842bb3bc5a4968.

PLUS a little change in epmd_srv.c:750 ("4" -> "replylen")
that was part of e2cf4a8a4b03b9f430ba228276c3b2629159e832
by mistake.

* Increase distribution version from 5 to 6
* Introduce new ALIVE2_X_RESP with 32-bit creation
  as reply to ALIVE2_REQ when sender dist version >= 6
* Still reply old ALIVE2_RESP with tiny creation 1..3
  if sender dist version < 6.

I did not find any legitimate use of "can not", however skipped
changing e.g RFCs archived in the source tree.