address: remove square bracket requirements for IPv6. (#140)
address: remove square bracket requirements for IPv6. (#140)

We can just try parse IPv6, and failing that do IPv4.
lyft/envoy-api,jrajahalme/envoy-api,rshriram/envoy-api,jrajahalme/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,rshriram/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,rshriram/envoy-api