Issue #17047: removed doubled words in Doc/*, Mac/*, and Tool/*
found by Serhiy Storchaka and Matthew Barnett
diff --git a/Doc/c-api/intro.rst b/Doc/c-api/intro.rst
index 4216881..c3a9ed6 100644
--- a/Doc/c-api/intro.rst
+++ b/Doc/c-api/intro.rst
@@ -424,7 +424,7 @@
.. index:: single: sum_sequence()
A simple example of detecting exceptions and passing them on is shown in the
-:c:func:`sum_sequence` example above. It so happens that that example doesn't
+:c:func:`sum_sequence` example above. It so happens that this example doesn't
need to clean up any owned references when it detects an error. The following
example function shows some error cleanup. First, to remind you why you like
Python, we show the equivalent Python code::
diff --git a/Doc/library/xml.dom.rst b/Doc/library/xml.dom.rst
index 1069615..565dc84 100644
--- a/Doc/library/xml.dom.rst
+++ b/Doc/library/xml.dom.rst
@@ -374,7 +374,7 @@
Add a new child node to this node at the end of the list of
children, returning *newChild*. If the node was already in
- in the tree, it is removed first.
+ the tree, it is removed first.
.. method:: Node.insertBefore(newChild, refChild)