* lukas/kernel/inet_db_fix_set_of_non-existing_file/OTP-15806:
  kernel: Fix setting of non-existing file as inet_db resolv_conf

This was broken in 7c63a98c28d477.

Add hostname to -remsh if none is given

* lukas/kernel/double-sname-fix/ERL-912/OTP-15786:
  kernel: Multiple -sname or -name would be ignored

The -name option already computes a default
hostname if none is given. This PR adds the
same behaviour to -remsh. Now we can run:

    erl -name foo -remsh bar
    erl -sname foo -remsh bar

This simplifies deployment scripts as otherwise
they have to compute the hostname by hand or
start an Erlang VM instance only to do so.

Add a note about timeouts on gen_tcp:connect/3,4

This reverts commit 425889ba69b69a9b6fb14bfbef121d51b78e853a.

* peterdmv/ssl/doc-types-and-specs/OTP-15746:
  ssl: Add type specs for http_packet()
  ssl: Fix type specs of ssl_internal.hrl
  ssl: Fix type specs of internal handshake functions
  ssl: Fix dialyzer warnings
  eldap: Fix dialyzer warnings
  ssl: Fix missing anchor warning
  public_key: Accept digest types 'sha1' and 'sha'
  inet: Document type inet:stat_option()
  ssl: Changed function specs and ssl.xml
  ssl: Update standards_compliance.xml

OTP-15775
OTP-15776
OTP-15777

Change-Id: Ibe8e8263d6557eaa40cc0681a7ce3fcb373a4120