Various typos.

docs/patterns/packages.rst

@@ -241,5 +241,5 @@ static folder of the whole application as ``'static'``.
 If you want to refer to the templates you just have to prefix it with the
 name of the module.  So for the admin it would be
 ``render_template('admin/list_items.html')`` and so on.  It is not
-possible to refer to templates without the prefixed modlue name.  This is
+possible to refer to templates without the prefixed module name.  This is
 explicit unlike URL rules.

flask/app.py

@@ -426,8 +426,7 @@ class Flask(_PackageBoundObject):
         if self.config['SERVER_NAME'] is not None:
             domain = '.' + self.config['SERVER_NAME']
         session.save_cookie(response, self.session_cookie_name,
-                            expires=expires, httponly=True,
-                            domain=domain)
+                            expires=expires, httponly=True, domain=domain)
 
     def register_module(self, module, **options):
         """Registers a module with this application.  The keyword argument

flask/module.py

@@ -15,7 +15,7 @@ from .helpers import _PackageBoundObject
 def _register_module(module, static_path):
     """Internal helper function that returns a function for recording
     that registers the `send_static_file` function for the module on
-    the application of necessary.  It also registers the module on
+    the application if necessary.  It also registers the module on
     the application.
     """
     def _register(state):

flask/session.py

@@ -37,7 +37,7 @@ class _NullSession(Session):
     def _fail(self, *args, **kwargs):
         raise RuntimeError('the session is unavailable because no secret '
                            'key was set.  Set the secret_key on the '
-                           'application to something unique and secret')
+                           'application to something unique and secret.')
     __setitem__ = __delitem__ = clear = pop = popitem = \
         update = setdefault = _fail
     del _fail

flask/templating.py

@@ -48,7 +48,7 @@ class _DispatchingJinjaLoader(BaseLoader):
                 return loader.get_source(environment, name)
             except TemplateNotFound:
                 pass
-        # raise the exception with the correct fileame here.
+        # raise the exception with the correct filename here.
         # (the one that includes the prefix)
         raise TemplateNotFound(template)