Add support for --prepare to store tx for multisig

docs/guide/counter/cmd/countercli/commands/counter.go

@@ -46,17 +46,19 @@ func counterTx(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	// Sign if needed and post.  This it the work-horse
-	bres, err := txcmd.SignAndPostTx(tx.Unwrap())
+	err = txcmd.SignTx(tx)
 	if err != nil {
 		return err
 	}
-	if err = txcmd.ValidateResult(bres); err != nil {
+
+	bres, err := txcmd.PrepareOrPostTx(tx)
+	if err != nil {
 		return err
 	}
-
-	// Output result
-	return txcmd.OutputTx(bres)
+	if bres == nil {
+		return nil // successful prep, nothing left to do
+	}
+	return txcmd.OutputTx(bres) // print response of the post
 }
 
 func readCounterTxFlags() (tx basecoin.Tx, err error) {