sdp_sync.sh to pass -n flag to p4 sync
In dry-run mode - it would be useful to pass -n to the p4 sync commands so I can see the files that would get updated by p4 sync.
UPDATE:
This is implemented as '-N' flag, separtate from '-n'.
The '-n' shows the 'ssh' commands that would be used to access other hosts, but does not get as for as getting to the other
hosts.
The '-N' goes to the remote hosts, and does a 'p4 sync -n' on the hosts (but not a live 'p4 sync').