bug fix: increment cnt in retryuploadFailed dir

upload_manager.go

diff --git a/upload_manager.go b/upload_manager.go
index a95ce87..4deba03 100644
--- a/upload_manager.go
+++ b/upload_manager.go
@@ -104,6 +104,7 @@
 				log.Errorf("Cannot move directory '%s'"+
 					" from failed to staging folder", dir.Name())
 			}
+			cnt++
 		} else {
 			break
 		}