* Depending on the host configuration between the docker engine and the remote host we wish to mount using sshfs, a password may be required.
* Confirmed syntax for optional parameter with @vieux
* Verified change works as desired with engine running on Ubuntu host and mounting a volume from a file system on a Mac.
Signed-off-by: David Williamson <david.williamson@docker.com>
Upstream-commit: d9e5f7d8f7a749c36f8694852340aa136b9c29f5
Component: engine