Fix doc typo: Window -> Windows (GH-10508)

miss-islington · l-n-s · web-flow · commit a15e1e82c9be · 2018-11-13T16:23:50.000-08:00
(cherry picked from commit daeb3c4) Co-authored-by: l-n-s <supervillain@riseup.net>
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
@@ -2586,7 +2586,7 @@ features:
    morph to the target dynamically.  If the target is present, the type of the
    symlink will be created to match. Otherwise, the symlink will be created
    as a directory if *target_is_directory* is ``True`` or a file symlink (the
-   default) otherwise.  On non-Window platforms, *target_is_directory* is ignored.
+   default) otherwise.  On non-Windows platforms, *target_is_directory* is ignored.
 
    Symbolic link support was introduced in Windows 6.0 (Vista).  :func:`symlink`
    will raise a :exc:`NotImplementedError` on Windows versions earlier than 6.0.
