Small whitespace fixes for shutil.rmtree() docs.

Doc/library/shutil.rst

@@ -180,6 +180,7 @@ Directory and files operations
    .. versionchanged:: 3.3
       Added return of the *dst*.
 
+
 .. function:: rmtree(path, ignore_errors=False, onerror=None)
 
    .. index:: single: directory; deleting
@@ -194,11 +195,11 @@ Directory and files operations
 
       On platforms that support the necessary fd-based functions a symlink
       attack resistant version of :func:`rmtree` is used by default.  On other
-      platforms, the :func:`rmtree` implementation is susceptible to a
-      symlink attack: given proper timing and circumstances, attackers can
-      manipulate symlinks on the filesystem to delete files they wouldn't
-      be able to access otherwise. Applications can use the :data:`rmtree.avoids_symlink_attacks` function attribute to
-      determine which case applies.
+      platforms, the :func:`rmtree` implementation is susceptible to a symlink
+      attack: given proper timing and circumstances, attackers can manipulate
+      symlinks on the filesystem to delete files they wouldn't be able to access
+      otherwise.  Applications can use the :data:`rmtree.avoids_symlink_attacks`
+      function attribute to determine which case applies.
 
    If *onerror* is provided, it must be a callable that accepts three
    parameters: *function*, *path*, and *excinfo*.
@@ -221,6 +222,7 @@ Directory and files operations
 
       .. versionadded:: 3.3
 
+
 .. function:: move(src, dst)
 
    Recursively move a file or directory (*src*) to another location (*dst*)