Fix error handling in createLoadBalncerSandbox()
Fix error handling in createLoadBalncerSandbox()

Error unwinding only works if the error variable is used consistently
and isn't hidden in the scope of other if statements.

Signed-off-by: Chris Telfer <9cf1a5ba8f085fe3bf87fd3e4704febafc338899@docker.com>

vdemeester/libnetwork,medallia/libnetwork,medallia/libnetwork,docker/libnetwork,vdemeester/libnetwork,vdemeester/libnetwork,mahak/libnetwork,docker/libnetwork,mahak/libnetwork,medallia/libnetwork,mahak/libnetwork,docker/libnetwork