correct Link Error output missing err when prefix not set (#21)

Author: Dean Karn

CHANGELOG.md

@@ -6,7 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [5.3.1] - 2023-08-16
+## [5.3.2] - 2023-08-16
+### Fixed
+- Link Error output missing error when prefix was blank.
+
+## [5.3.1] - 2023-08-15
 ### Fixed
 - Wrap recursively wrapping the Chain itself instead of only adding another Link.
 
@@ -37,7 +41,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Updated deps.
 
 
-[Unreleased]: https://github.com/go-playground/errors/compare/v5.3.1...HEAD
+[Unreleased]: https://github.com/go-playground/errors/compare/v5.3.2...HEAD
+[5.3.2]: https://github.com/go-playground/errors/compare/v5.3.1...v5.3.2
 [5.3.1]: https://github.com/go-playground/errors/compare/v5.3.0...v5.3.1
 [5.3.0]: https://github.com/go-playground/errors/compare/v5.2.3...v5.3.0
 [5.2.3]: https://github.com/go-playground/errors/compare/v5.2.2...v5.2.3

README.md

@@ -1,6 +1,6 @@
 Package errors
 ============
-![Project status](https://img.shields.io/badge/version-5.3.1-green.svg)
+![Project status](https://img.shields.io/badge/version-5.3.2-green.svg)
 [![Build Status](https://travis-ci.org/go-playground/errors.svg?branch=master)](https://travis-ci.org/go-playground/errors)
 [![Go Report Card](https://goreportcard.com/badge/github.com/go-playground/errors)](https://goreportcard.com/report/github.com/go-playground/errors)
 [![GoDoc](https://godoc.org/github.com/go-playground/errors?status.svg)](https://pkg.go.dev/github.com/go-playground/errors/v5)

chain.go

@@ -107,11 +107,13 @@ func (l *Link) formatError(b []byte) []byte {
 
 	if l.Prefix != "" {
 		b = append(b, l.Prefix...)
+	}
 
-		if l.Err != nil {
+	if l.Err != nil {
+		if l.Prefix != "" {
 			b = append(b, ": "...)
-			b = append(b, l.Err.Error()...)
 		}
+		b = append(b, l.Err.Error()...)
 	}
 
 	for _, tag := range l.Tags {