Merge pull request #35694 from boucher/checkpoint-dir-fix

Don't append the container id to custom directory checkpoints.
diff --git a/daemon/checkpoint.go b/daemon/checkpoint.go
index 482e3b8..78930de 100644
--- a/daemon/checkpoint.go
+++ b/daemon/checkpoint.go
@@ -22,7 +22,7 @@
 	var checkpointDir string
 	var err2 error
 	if checkDir != "" {
-		checkpointDir = filepath.Join(checkDir, ctrID, "checkpoints")
+		checkpointDir = checkDir
 	} else {
 		checkpointDir = ctrCheckpointDir
 	}