x/auth: cleanup ante handler

types/errors.go

@@ -27,6 +27,7 @@ const (
 	CodeInsufficientFunds   CodeType = 5
 	CodeUnknownRequest      CodeType = 6
 	CodeUnrecognizedAddress CodeType = 7
+	CodeMissingPubKey       CodeType = 8
 
 	CodeGenesisParse CodeType = 0xdead // TODO: remove ?
 )
@@ -50,6 +51,8 @@ func CodeToDefaultMsg(code CodeType) string {
 		return "Unknown request"
 	case CodeUnrecognizedAddress:
 		return "Unrecognized address"
+	case CodeMissingPubKey:
+		return "Missing pubkey"
 	default:
 		return fmt.Sprintf("Unknown code %d", code)
 	}
@@ -84,6 +87,9 @@ func ErrUnknownRequest(msg string) Error {
 func ErrUnrecognizedAddress(addr Address) Error {
 	return newError(CodeUnrecognizedAddress, addr.String())
 }
+func ErrMissingPubKey(addr Address) Error {
+	return newError(CodeMissingPubKey, addr.String())
+}
 
 //----------------------------------------
 // Error & sdkError

types/tx_msg.go

@@ -78,7 +78,7 @@ func FeePayer(tx Tx) Address {
 }
 
 // StdFee includes the amount of coins paid in fees and the maximum
-// gas to be used by the transaction. The ratio yields an effectie "gasprice",
+// gas to be used by the transaction. The ratio yields an effective "gasprice",
 // which must be above some miminum to be accepted into the mempool.
 type StdFee struct {
 	Amount Coins `json"amount"`