Remove trailing whitespace.
diff --git a/Doc/library/abc.rst b/Doc/library/abc.rst
index b03fc83..bf3b0b1 100644
--- a/Doc/library/abc.rst
+++ b/Doc/library/abc.rst
@@ -128,7 +128,7 @@
A decorator indicating abstract methods.
Using this decorator requires that the class's metaclass is :class:`ABCMeta` or
- is derived from it.
+ is derived from it.
A class that has a metaclass derived from :class:`ABCMeta`
cannot be instantiated unless all of its abstract methods and
properties are overridden.
@@ -163,7 +163,7 @@
A subclass of the built-in :func:`property`, indicating an abstract property.
Using this function requires that the class's metaclass is :class:`ABCMeta` or
- is derived from it.
+ is derived from it.
A class that has a metaclass derived from :class:`ABCMeta` cannot be
instantiated unless all of its abstract methods and properties are overridden.
The abstract properties can be called using any of the normal