Fix a bunch of typos in documentation, docstrings and comments.
(From SF patch #810751)
diff --git a/Tools/scripts/fixdiv.py b/Tools/scripts/fixdiv.py
index 70d5f19..2bbd3d5 100755
--- a/Tools/scripts/fixdiv.py
+++ b/Tools/scripts/fixdiv.py
@@ -56,7 +56,7 @@
- 'No conclusive evidence on line N', line marked by '*':
A / operator was found for which no warnings were seen. This could
- be code that was never executed, or code that was only executed with
+ be code that was never executed, or code that was only executed
with user-defined objects as arguments. You will have to
investigate further. Note that // can be overloaded separately from
/, using __floordiv__. True division can also be separately