Fix errcheck lint issues

Author: firecow

main.go

@@ -30,7 +30,7 @@ func main() {
 	}
 
 	logger, _ := zap.NewProduction()
-	defer logger.Sync()
+	defer func() { _ = logger.Sync() }()
 
 	acl := internal.NewACL(*aclFile)
 
@@ -71,7 +71,7 @@ func main() {
 		signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
 		<-sigCh
 		logger.Info("shutting down")
-		server.Close()
+		_ = server.Close()
 	}()
 
 	logger.Info("starting server", zap.String("listen", *listen), zap.String("docker-socket", *dockerSocket))

main_test.go

@@ -29,7 +29,7 @@ func newTestHandler(t *testing.T) http.Handler {
 	guard := guards.NewServicesEdit(context.Background(), testLogger, testACL, dockerApi)
 	backend := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("OK"))
+		_, _ = w.Write([]byte("OK"))
 	})
 	return authMiddleware(testLogger, testACL, guard, backend)
 }