chore: make golangci-lint happy

netbox/client.go

@@ -62,7 +62,7 @@ func (cfg *Config) Client() (*netboxclient.NetBoxAPI, error) {
 
 	trans.(*http.Transport).Proxy = http.ProxyFromEnvironment
 
-	if cfg.Headers != nil && len(cfg.Headers) > 0 {
+	if len(cfg.Headers) > 0 {
 		log.WithFields(log.Fields{
 			"custom_headers": cfg.Headers,
 		}).Debug("Setting custom headers on every request to Netbox")

netbox/provider.go

@@ -25,23 +25,23 @@ func init() {
 			desc += "."
 		}
 
-		if s.AtLeastOneOf != nil && len(s.AtLeastOneOf) > 0 {
+		if len(s.AtLeastOneOf) > 0 {
 			atLeastOneOf := make([]string, len(s.AtLeastOneOf))
 			for i, l := range s.AtLeastOneOf {
 				atLeastOneOf[i] = fmt.Sprintf("`%s`", l)
 			}
 			desc += fmt.Sprintf(" At least one of %s must be given.", joinStringWithFinalConjunction(atLeastOneOf, ", ", "or"))
 		}
 
-		if s.ExactlyOneOf != nil && len(s.ExactlyOneOf) > 0 {
+		if len(s.ExactlyOneOf) > 0 {
 			exactlyOneOf := make([]string, len(s.ExactlyOneOf))
 			for i, l := range s.ExactlyOneOf {
 				exactlyOneOf[i] = fmt.Sprintf("`%s`", l)
 			}
 			desc += fmt.Sprintf(" Exactly one of %s must be given.", joinStringWithFinalConjunction(exactlyOneOf, ", ", "or"))
 		}
 
-		if s.RequiredWith != nil && len(s.RequiredWith) > 0 {
+		if len(s.RequiredWith) > 0 {
 			requires := make([]string, len(s.RequiredWith))
 			for i, c := range s.RequiredWith {
 				requires[i] = fmt.Sprintf("`%s`", c)