use theme provided by pallets-sphinx-themes

flask/cli.py

@@ -243,7 +243,7 @@ def locate_app(script_info, module_name, app_name, raise_if_not_found=True):
             )
         elif raise_if_not_found:
             raise NoAppException(
-                'Could not import "{name}"."'.format(name=module_name)
+                'Could not import "{name}".'.format(name=module_name)
             )
         else:
             return

flask/helpers.py

@@ -486,7 +486,7 @@ def send_file(filename_or_fp, mimetype=None, as_attachment=False,
        The `attachment_filename` is preferred over `filename` for MIME-type
        detection.
 
-    .. versionchanged:: 0.13
+    .. versionchanged:: 1.0
         UTF-8 filenames, as specified in `RFC 2231`_, are supported.
 
     .. _RFC 2231: https://tools.ietf.org/html/rfc2231#section-4