minor

main.go

@@ -398,7 +398,7 @@ Options:
   --fullchain-destination=FULLCHAINDESTINATION  Full Chain Destination[default: %v/<cert-name>_fullchain.crt]
   --key-destination=KEYDESTINATION              Key Destination [default: %v/<cert-name>.key]
   --ca-destination=CADESTINATION                CA Destination [default: %v/COMODO_<type>.crt]
-  --wildcard                                    The certificate is wildcard
+  --wildcard                                    The certificate type is wildcard
 `, CertBase, CertBase, KeyBase, CertBase)
 
 	arguments, _ := docopt.Parse(usage, nil, true, appVersion, false)