Fix logrus.Error(err) formatting

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

Author: brandond

backend/daemon.go

@@ -69,7 +69,7 @@ func getListener(addr string) (net.Listener, error) {
 func (s *CriDockerService) Start() error {
 	// Start the internal service.
 	if err := s.service.Start(); err != nil {
-		logrus.Error(err, "Unable to start cri-dockerd service")
+		logrus.Errorf("Unable to start cri-dockerd service: %v", err)
 		return err
 	}
 
@@ -93,7 +93,7 @@ func (s *CriDockerService) Start() error {
 
 	go func() {
 		if err := s.server.Serve(l); err != nil {
-			logrus.Error(err, "Failed to serve connections from cri-dockerd")
+			logrus.Errorf("Failed to serve connections from cri-dockerd: %v", err)
 			os.Exit(1)
 		}
 	}()

core/imagefs_linux.go

@@ -35,7 +35,7 @@ func (ds *dockerService) imageFsInfo() (*runtimeapi.ImageFsInfoResponse, error)
 	stat := &syscall.Statfs_t{}
 	err := syscall.Statfs(ds.dockerRootDir, stat)
 	if err != nil {
-		logrus.Error(err, "Failed to get filesystem info for %s", ds.dockerRootDir)
+		logrus.Errorf("Failed to get filesystem info for %s: %v", ds.dockerRootDir, err)
 		return nil, err
 	}
 	usedBytes := (stat.Blocks - stat.Bfree) * uint64(stat.Bsize)
@@ -45,7 +45,7 @@ func (ds *dockerService) imageFsInfo() (*runtimeapi.ImageFsInfoResponse, error)
 	// compute total used bytes by docker images
 	images, err := ds.client.ListImages(image.ListOptions{All: true, SharedSize: true})
 	if err != nil {
-		logrus.Error(err, "Failed to get image list from docker")
+		logrus.Errorf("Failed to get image list from docker: %v", err)
 		return nil, err
 	}
 	var totalImageSize uint64