fixed comments about curl request to match server code

src/client/cmdLogin/login.go

@@ -93,8 +93,7 @@ func (cmd *Login)Run(args []string) int {
 */
 
 // Returns the token if the authentication was successful or an error if it wasn't.
-//
-// curl -X POST http://localhost:8000/login -H 'Content-Type: application/json' -d '{"email": "johndoe@nexus.org", "pwd":"pipomolo"}'
+// curl --cacert ca-cert.pem -X POST https://localhost:8000/login -H 'Content-Type: application/json' -d '{"email": "johndoe@nexus.org", "pwd":"pipomolo"}'
 // Returns a jwt token if authentication was successful:
 // {"token":"<jwt token>"}
 func GetToken(user, pwd string) (string, error) {