normalized internal errors formatting

tools/mailer/sendmail.go

@@ -74,5 +74,5 @@ func findSendmailPath() (string, error) {
 		}
 	}
 
-	return "", errors.New("Failed to locate a sendmail executable path.")
+	return "", errors.New("failed to locate a sendmail executable path")
 }

tools/search/simple_field_resolver.go

@@ -76,7 +76,7 @@ func (r *SimpleFieldResolver) UpdateQuery(query *dbx.SelectQuery) error {
 // Returns error if `field` is not in `r.allowedFields`.
 func (r *SimpleFieldResolver) Resolve(field string) (*ResolverResult, error) {
 	if !list.ExistInSliceWithRegex(field, r.allowedFields) {
-		return nil, fmt.Errorf("Failed to resolve field %q.", field)
+		return nil, fmt.Errorf("failed to resolve field %q", field)
 	}
 
 	parts := strings.Split(field, ".")

tools/security/jwt.go

@@ -39,7 +39,7 @@ func ParseJWT(token string, verificationKey string) (jwt.MapClaims, error) {
 		return claims, nil
 	}
 
-	return nil, errors.New("Unable to parse token.")
+	return nil, errors.New("unable to parse token")
 }
 
 // NewJWT generates and returns new HS256 signed JWT.

tools/types/json_array.go

@@ -41,7 +41,7 @@ func (m *JsonArray[T]) Scan(value any) error {
 	case string:
 		data = []byte(v)
 	default:
-		return fmt.Errorf("Failed to unmarshal JsonArray value: %q.", value)
+		return fmt.Errorf("failed to unmarshal JsonArray value: %q", value)
 	}
 
 	if len(data) == 0 {

tools/types/json_map.go

@@ -56,7 +56,7 @@ func (m *JsonMap) Scan(value any) error {
 	case string:
 		data = []byte(v)
 	default:
-		return fmt.Errorf("Failed to unmarshal JsonMap value: %q.", value)
+		return fmt.Errorf("failed to unmarshal JsonMap value: %q", value)
 	}
 
 	if len(data) == 0 {