Remove trailing newline from exec.Command

ytdl.go

@@ -26,7 +26,7 @@ func NewYTdl(vid string) ([]byte, error) {
 		return nil, err
 	}
 
-	return uri, nil
+	return uri[:len(uri)-1], nil
 }
 
 func DownloadAmbiance(uri string, name string) error {