Summary:
The documentation is explicit that Git does not pass this flag:
The $GIT_SSH command will be given exactly two arguments: the username@host (or just host) from the URL and the shell command to execute on that remote system.
This isn't true; it does. Accommodate it.
I'll see if I can fix this in the upstream, too.
Test Plan: Ran various `ssh-connect` commands with -p, etc.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D7680