Patch to commit-change patch to add docker import support



pass --change changes to the import job

Docker-DCO-1.1-Signed-off-by: Dan Walsh <dwalsh@redhat.com> (github: rhatdan)

I have added a patch to #8765

Which implements docker import --change.

What I am indicating here is you do 

docker commit --change "ENV foo=bar" --change "CMD /usr/sbin/foo"
docker run ...
Docker commit --change "ENV foor=foobar"  --change "CMD /sbin/init"

Now running the container will show the second environment variable and CMD will change from /usr/bin/foobar to /sbin/init.