* ms/file-fix-hang-reading-compressed-files:
  file: fix hang reading compressed files

OTP-9245

* raimo/inet_res-crash-rest-time-0/OTP-9221:
  Do not UDP send when there is 0 ms left to wait for reply
  Check return values from UDP send functions
  Cleanup timeout handling, fix bug for remaining time =:= 0
  Add DNS proxy and first test case for late answer

The gzio driver goes into an infinite loop when reading past the end of
a compressed file.

Reported-By: Alex Morarash

heart:get_cmd/0 is documented to return an empty string if the command is
cleared. get_cmd/0 returns 2 extra bytes: 1 byte for the trailing null,
1 byte from the op (the op is an unsigned char and 2 bytes are allocated
for it in the returned buffer).

1> heart:get_cmd().
{ok,[0,0]}
2> heart:set_cmd("echo hello").
ok
3> heart:get_cmd().
{ok,[101,99,104,111,32,104,101,108,108,111,0,0]}
4> heart:clear_cmd().
ok
5> heart:get_cmd().
{ok,[0,99]}

* hw/call-chmod-without-f:
  Call chmod without the "-f" flag

Conflicts:
	erts/emulator/test/Makefile
	lib/asn1/test/Makefile
	lib/crypto/test/Makefile
	lib/debugger/test/Makefile
	lib/docbuilder/test/Makefile
	lib/edoc/test/Makefile
	lib/erl_interface/test/Makefile
	lib/inviso/test/Makefile
	lib/parsetools/test/Makefile
	lib/percept/test/Makefile
	lib/ssl/test/Makefile
	lib/syntax_tools/test/Makefile
	lib/test_server/test/Makefile
	lib/tools/test/Makefile

OTP-9170

* pan/tcp_send_timeout/OTP-9145:
  Add testcase
  Teach tcp_recv not to cancel send timer