[ftp] Fails to open IPv6 connection

Fails to open IPv6 connection due to badly formatted IPv6 address in
EPRT command. The address part of the command incorrectly contained decimal
elements instead of hexadecimal.
Attila Rajmund Nohl
OTP-9827
erts: Remove unused variable

Remove unused variable erts_system_monitor_msg_queue_len
Merge branch 'siri/stdlib/delete-temp-childspec-on-ignore/OTP-9782' into maint

* siri/stdlib/delete-temp-childspec-on-ignore/OTP-9782:
  Don't save child spec for temporary child if child's start func returns ignore
Merge branch 'siri/sasl/require-kernel-start/OTP-9652' into maint

* siri/sasl/require-kernel-start/OTP-9652:
  Reject systools:make_script if kernel and stdlib are not permanent in .rel
Merge branch 'siri/sasl/check-config-in-tar/OTP-9539' into maint

* siri/sasl/check-config-in-tar/OTP-9539:
  Check that sys.config and relup have valid content when added to tar
[megaco] Fixed faulty test case (connect)
[snmp] Mostly added some more verbosity stuff

OTP-9700
[snmp] Correted the expect bug in the snmp test utility

This bug will in turn will trigger some other bugs
(in the agent), these will be dealt with later.
OTP-9700
[snmp] Maximum number of varbinds in a Get-BULK response

As a means to prevent DoS, maximum number of varbinds
in a Get-BULK response has been limited.
Also, made some changes to the worker process "API".
OTP-9700.
[snmp] Fixed the mt_trap test-case

It has long been broken, but this fact was hidden by the
faulty expect functions.
OTP-9700
[snmp] Add a more informative return value when the trap sending fails

OTP-9700
[snmp] Be more verbose in the worker procs

Add a verbosity printout for results of the requests sent to it).
Also fixed handling sent_trap and appup.
OTP-9700
prim_file_SUITE: large_file success depends on wordsize

Check VM wordsize to see if a driver command with data
larger than 32-bit size is supposed to succeed. On
wordsize 4 machines (32-bit) {error,einval} is expected
since the total size passed to a driver can not exceed
sizeof(ErlDrvSizeT).
[snmp] Updated doc and fixed wrequest create macros

Release notes updated, together with documentation of the
new config option. Also fixed the wrequest create
macros (forgot end parantesis).
OTP-9700
Handle nowarn_unused_function like the compiler does
Merge branch 'hb/erl_docgen/fix_links/OTP-9832' into maint

* hb/erl_docgen/fix_links/OTP-9832:
  Generate links in C libraries correctly
Merge branch 'raimo/opu-fixes' into maint

* raimo/opu-fixes:
  inet_res_SUITE: Go back to old way to kill test name server
Include wakeup pipe in /dev/poll poll-set also on non-SMP

I/O events could potentially be delayed for ever when enabling
kernel-poll on a non-SMP runtime system executing on Solaris. When
also combined with async-threads the runtime system hung before
completing the boot phase. This bug was introduced in
erts-5.9/OTP-R15B.
Fix lwsync instruction feature test

A feature test for the lwsync instruction performed on PowerPC
hardware at runtime system startup got into an eternal loop if
the instruction was not supported. This bug was introduced in
erts-5.9/OTP-R15B.
Merge branch 'rickard/lwsync/OTP-9843' into maint-r15

* rickard/lwsync/OTP-9843:
  Fix lwsync instruction feature test