Stdlib: add container default values (#9909)

stdlib/ftplib.pyi

@@ -106,7 +106,7 @@ class FTP:
     def nlst(self, *args: str) -> list[str]: ...
     # Technically only the last arg can be a Callable but ...
     def dir(self, *args: str | Callable[[str], object]) -> None: ...
-    def mlsd(self, path: str = "", facts: Iterable[str] = ...) -> Iterator[tuple[str, dict[str, str]]]: ...
+    def mlsd(self, path: str = "", facts: Iterable[str] = []) -> Iterator[tuple[str, dict[str, str]]]: ...
     def rename(self, fromname: str, toname: str) -> str: ...
     def delete(self, filename: str) -> str: ...
     def cwd(self, dirname: str) -> str: ...