Address a few more review items.

- Distinguish between missing address and database error
- Wrap help text for wallet generation seed
- Don't rescan if there are no addresses

rescan.go

@@ -264,6 +264,12 @@ func (w *Wallet) RescanActiveAddresses() error {
 		return err
 	}
 
+	// in case there are no addresses, we can skip queuing the rescan job
+	if len(addrs) == 0 {
+		close(w.chainSynced)
+		return nil
+	}
+
 	unspents, err := w.TxStore.UnspentOutputs()
 	if err != nil {
 		return err

rpcserver.go

@@ -2793,9 +2793,14 @@ func ValidateAddress(w *Wallet, chainSvr *chain.Client, icmd btcjson.Cmd) (inter
 	result.IsValid = true
 
 	ainfo, err := w.Manager.Address(addr)
+	if managerErr, ok := err.(waddrmgr.ManagerError); ok {
+		if managerErr.ErrorCode == waddrmgr.ErrAddressNotFound {
+			// No additional information available about the address.
+			return result, nil
+		}
+	}
 	if err != nil {
-		// No additional information available about the address.
-		return result, nil
+		return nil, err
 	}
 
 	// The address lookup was successful which means there is further

walletsetup.go

@@ -245,11 +245,11 @@ func promptConsoleSeed(reader *bufio.Reader) ([]byte, error) {
 
 		fmt.Println("Your wallet generation seed is:")
 		fmt.Printf("%x\n", seed)
-		fmt.Println("IMPORTANT: Keep the seed in a safe place as you " +
+		fmt.Println("IMPORTANT: Keep the seed in a safe place as you\n" +
 			"will NOT be able to restore your wallet without it.")
-		fmt.Println("Please keep in mind that anyone who has access " +
-			"to the seed can also restore your wallet thereby " +
-			"giving them access to all your funds, so it is " +
+		fmt.Println("Please keep in mind that anyone who has access\n" +
+			"to the seed can also restore your wallet thereby\n" +
+			"giving them access to all your funds, so it is\n" +
 			"imperative that you keep it in a secure location.")
 
 		for {