Do not update hosts file with internal networks endpoint IP
Do not update hosts file with internal networks endpoint IP

Signed-off-by: Alessandro Boch <5bd2eb5b6f60921d9a2b9cb6a0a86bb947f3d361@docker.com>

ityangchen/libnetwork,fcrisciani/libnetwork,curtiszimmerman/libnetwork,vdemeester/libnetwork,kolyshkin/libnetwork,tmakita/libnetwork,kolyshkin/libnetwork,fcrisciani/libnetwork,abhi/libnetwork,sainath14/libnetwork,ityangchen/libnetwork,mahak/libnetwork,docker/libnetwork,mbanikazemi/libnetwork,WeiZhang555/libnetwork,mahak/libnetwork,abhi/libnetwork,kolyshkin/libnetwork,mYmNeo/libnetwork,WeiZhang555/libnetwork,docker/libnetwork,msabansal/libnetwork,abhi/libnetwork,curtiszimmerman/libnetwork,mbanikazemi/libnetwork,medallia/libnetwork,msabansal/libnetwork,vdemeester/libnetwork,mahak/libnetwork,medallia/libnetwork,allencloud/libnetwork,docker/libnetwork,allencloud/libnetwork,tmakita/libnetwork,mYmNeo/libnetwork,medallia/libnetwork,vdemeester/libnetwork,sainath14/libnetwork