fix description of 'docker swarm init'
@@ -21,7 +21,7 @@ Usage: docker swarm init [OPTIONS]
Initialize a swarm
Options:
- --advertise-addr value Advertised address (format: <ip|interface>[:port])
+ --advertise-addr string Advertised address (format: <ip|interface>[:port])
--autolock Enable manager autolocking (requiring an unlock key to start a stopped manager)
--cert-expiry duration Validity period for node certificates (ns|us|ms|s|m|h) (default 2160h0m0s)
--dispatcher-heartbeat duration Dispatcher heartbeat period (ns|us|ms|s|m|h) (default 5s)
