Errorf -> fmt.Errorf

state/execution.go

@@ -3,6 +3,7 @@ package state
 import (
 	"bytes"
 	"errors"
+	"fmt"
 
 	"github.com/tendermint/tendermint/account"
 	. "github.com/tendermint/tendermint/common"
@@ -20,7 +21,7 @@ func ExecBlock(s *State, block *types.Block, blockPartsHeader types.PartSetHeade
 	// State.Hash should match block.StateHash
 	stateHash := s.Hash()
 	if !bytes.Equal(stateHash, block.StateHash) {
-		return Errorf("Invalid state hash. Expected %X, got %X",
+		return fmt.Errorf("Invalid state hash. Expected %X, got %X",
 			stateHash, block.StateHash)
 	}
 	return nil

state/validator_set.go

@@ -225,11 +225,11 @@ func (valSet *ValidatorSet) VerifyValidation(hash []byte, parts types.PartSetHea
 
 		// Validate
 		if _, seen := seenValidators[string(val.Address)]; seen {
-			return Errorf("Duplicate validator for commit %v for Validation %v", commit, v)
+			return fmt.Errorf("Duplicate validator for commit %v for Validation %v", commit, v)
 		}
 
 		if !val.PubKey.VerifyBytes(commitSignBytes, commit.Signature) {
-			return Errorf("Invalid signature for commit %v for Validation %v", commit, v)
+			return fmt.Errorf("Invalid signature for commit %v for Validation %v", commit, v)
 		}
 
 		// Tally
@@ -240,7 +240,7 @@ func (valSet *ValidatorSet) VerifyValidation(hash []byte, parts types.PartSetHea
 	if talliedVotingPower > valSet.TotalVotingPower()*2/3 {
 		return nil
 	} else {
-		return Errorf("insufficient voting power %v, needed %v",
+		return fmt.Errorf("insufficient voting power %v, needed %v",
 			talliedVotingPower, (valSet.TotalVotingPower()*2/3 + 1))
 	}
 }