Add the list of possible values for --log-level to help text
Closes
@@ -92,7 +92,7 @@ expect an integer, and they can only be specified once.
--ip-masq=true Enable IP masquerading for bridge's IP range
--iptables=true Enable Docker's addition of iptables rules
--ipv6=false Enable Docker IPv6 support
- -l, --log-level="info" Set the logging level
+ -l, --log-level="info" Set the logging level (debug, info, warn, error, fatal)
--label=[] Set key=value labels to the daemon (displayed in `docker info`)
--mtu=0 Set the containers network MTU
if no value is provided: default to the default route MTU or 1500 if no default route is available
