Use a daemon-defined Registry URL for `docker login`. This allows a
Windows client interacting with a Linux daemon to properly use the
default Registry endpoint instead of the Windows specific one.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Upstream-commit: 960710bd810e70b7c06b77b956c7bf8cdfeb15f8
Component: engine