Update functions that return error to not return pointer

* Matches Golang convention

pkg/config/config.go

@@ -24,12 +24,12 @@ var NewErrConfigFileNotFound = func(environment string) error {
 	return errors.New(fmt.Sprintf("No configuration found for environment: %v", environment))
 }
 
-func NewConfig(environment string) (*Config, error) {
+func NewConfig(environment string) (Config, error) {
 	filenameWithExtension := fmt.Sprintf("%s.toml", environment)
 	absolutePath := filepath.Join(ProjectRoot(), "environments", filenameWithExtension)
 	config, err := parseConfigFile(absolutePath)
 	if err != nil {
-		return nil, NewErrConfigFileNotFound(environment)
+		return Config{}, NewErrConfigFileNotFound(environment)
 	} else {
 		if !filepath.IsAbs(config.Client.IPCPath) {
 			config.Client.IPCPath = filepath.Join(ProjectRoot(), config.Client.IPCPath)
@@ -43,16 +43,16 @@ func ProjectRoot() string {
 	return path.Join(path.Dir(filename), "..", "..")
 }
 
-func parseConfigFile(filePath string) (*Config, error) {
+func parseConfigFile(filePath string) (Config, error) {
 	var cfg Config
 	_, err := os.Stat(filePath)
 	if err != nil {
-		return nil, err
+		return Config{}, err
 	} else {
 		_, err := toml.DecodeFile(filePath, &cfg)
 		if err != nil {
-			return nil, err
+			return Config{}, err
 		}
-		return &cfg, err
+		return cfg, err
 	}
 }