Sam Saffron d0dd517f27 FEATURE: blank global settings should not shadow
Due to https://github.com/docker/docker/issues/9298 it is a huge pain
to remove ENV vars when composing images, allow us to simply treat "blank"
as a ENV var that is not being shadowed. In general we always supply a
value to ENV vars we are shadowing.
2016-02-10 11:54:40 +11:00
..
2016-02-06 02:19:48 +05:30