add __init__ to Logger (#1415)

Author: amstree

stdlib/2and3/logging/__init__.pyi

@@ -35,6 +35,7 @@ class Logger:
     propagate = ...  # type: bool
     handlers = ...  # type: List[Handler]
     disabled = ...  # type: int
+    def __init__(self, name: str, level: _Level = ...) -> None: ...
     def setLevel(self, lvl: Union[int, str]) -> None: ...
     def isEnabledFor(self, lvl: int) -> bool: ...
     def getEffectiveLevel(self) -> int: ...