Merge branch 'bc/send-email-use-port-as-separate-param'

Pass port number as a separate argument when send-email initializes
Net::SMTP, instead of as a part of the hostname, i.e. host:port.
This allows GSSAPI codepath to match with the hostname given.

* bc/send-email-use-port-as-separate-param:
  send-email: provide port separately from hostname

diff --cc git-send-email.perl
Simple merge