Populate flag variables (#430)

Fixes a bug where the customer flag was being ignored

Author: hedge-sparrow

cli/cmd/customer_download_license.go

@@ -32,7 +32,16 @@ You must specify the customer using either their name or ID with the --customer
 
   # Download license for a customer in a specific app (if you have multiple apps)
   replicated customer download-license --app myapp --customer "Acme Inc" --output license.yaml`,
-		RunE: func(cmd *cobra.Command, args []string) error {
+		RunE: func(cmd *cobra.Command, args []string) (err error) {
+
+			if customer, err = cmd.Flags().GetString("customer"); err != nil {
+				return err
+			}
+
+			if output, err = cmd.Flags().GetString("output"); err != nil {
+				return err
+			}
+
 			return r.downloadCustomerLicense(cmd, customer, output)
 		},
 		SilenceUsage: true,