cmd: use errrors.New instead of empty fmt.Errorf (#27329)

Signed-off-by: jsvisa <delweng@gmail.com>

cmd/clef/main.go

@@ -326,7 +326,7 @@ func initializeSecrets(c *cli.Context) error {
 		return err
 	}
 	if num != len(masterSeed) {
-		return fmt.Errorf("failed to read enough random")
+		return errors.New("failed to read enough random")
 	}
 	n, p := keystore.StandardScryptN, keystore.StandardScryptP
 	if c.Bool(utils.LightKDFFlag.Name) {
@@ -482,7 +482,7 @@ func initialize(c *cli.Context) error {
 		}
 	} else if !c.Bool(acceptFlag.Name) {
 		if !confirm(legalWarning) {
-			return fmt.Errorf("aborted by user")
+			return errors.New("aborted by user")
 		}
 		fmt.Println()
 	}
@@ -590,7 +590,7 @@ func accountImport(c *cli.Context) error {
   Address %v
   Keystore file: %v
 
-The key is now encrypted; losing the password will result in permanently losing 
+The key is now encrypted; losing the password will result in permanently losing
 access to the key and all associated funds!
 
 Make sure to backup keystore and passwords in a safe location.`,
@@ -844,7 +844,7 @@ func readMasterKey(ctx *cli.Context, ui core.UIClientAPI) ([]byte, error) {
 	}
 	masterSeed, err := decryptSeed(cipherKey, password)
 	if err != nil {
-		return nil, fmt.Errorf("failed to decrypt the master seed of clef")
+		return nil, errors.New("failed to decrypt the master seed of clef")
 	}
 	if len(masterSeed) < 256 {
 		return nil, fmt.Errorf("master seed of insufficient length, expected >255 bytes, got %d", len(masterSeed))