Now that docker sets /proc/sys/net/ipv4/ip_forward by default (unless the user manually specifies "-ip-forward=false"), there's no need to warn if its disabled. Docker-DCO-1.1-Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> (github: jpoimboe) Upstream-commit: ef6c0d53410c0be6f33d049e7998b54804497350 Component: engine