Don't release fake gateway address
Don't release fake gateway address

Watch out for Docker releasing the fake gateway address we create when
the network is set up, and don't pass it on to Weave IPAM.

paulbellamy/weave,paulbellamy/weave,n054/weave,weaveworks/weave,weaveworks/weave,n054/weave,n054/weave,n054/weave,paulbellamy/weave,weaveworks/weave,n054/weave,paulbellamy/weave,weaveworks/weave