wait: use StringSlice instead of StringArray, and bind the urls flag in PreRunE

cmd/ci_wait.go

@@ -47,6 +47,12 @@ var ciWaitCmd = &cobra.Command{
 		if err != nil {
 			return err
 		}
+
+		err = viper.BindPFlag("urls", cmd.PersistentFlags().Lookup("urls"))
+		if err != nil {
+			return err
+		}
+
 		return nil
 	},
 }
@@ -66,7 +72,7 @@ type ciWaitBaseURLData struct {
 }
 
 func init() {
-	ciWaitCmd.PersistentFlags().StringArrayP("urls", "u", ciWaitURLsDefault, "List of URL templates to check in order to find version endpoint")
+	ciWaitCmd.PersistentFlags().StringSliceP("urls", "u", ciWaitURLsDefault, "List of URL templates to check in order to find version endpoint")
 	ciWaitCmd.PersistentFlags().Int("url-max-tries", 10, "Max tries to locate the version endpoint")
 	ciWaitCmd.PersistentFlags().Duration("url-delay", 10*time.Second, "Time to wait between attempts to locate version endpoint")
 	ciWaitCmd.PersistentFlags().Int("update-max-tries", 30, "Max tries to check version endpoint for the update")