docker/docker — pull request #8273 by duglin (2014-09-29 02:51:47+00:00)
Title: Fix error paring null JSON - Issue7941

Closes #7941

Treat a null in JSON, when reading the config of a container, as if the
property was never included. W/o this fix the null would be saved in the
property as a string with a value of "null".

Signed-off-by: Doug Davis