address: fix typo (#196)
address: fix typo (#196)

Signed-off-by: Jose Nino <ca94e32c82b10963d0ce6eadf427a615ff7d1c0b@lyft.com>
rshriram/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,jrajahalme/envoy-api,jrajahalme/envoy-api,lyft/envoy-api,rshriram/envoy-api,lyft/envoy-api,rshriram/envoy-api,jrajahalme/envoy-api