Close video file that exists when checking

downloader/download_downloadr.go

@@ -63,8 +63,9 @@ func DownloadR(url string) error {
 	}
 
 	fullVideoPath := filepath.Join(OUTPUT_DIR, videoAuthor, videoTitle+".mp4")
-	_, err = os.Open(fullVideoPath)
+	videoFileHandle, err := os.Open(fullVideoPath)
 	if err == nil {
+		videoFileHandle.Close()
 		log.Printf("File %s already exists, skipping download", fullVideoPath)
 		return nil
 	}