Remove duplication.
diff --git a/Lib/configparser.py b/Lib/configparser.py
index 12ba5ad..d148b88 100644
--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -381,7 +381,7 @@
would resolve the "%(dir)s" to the value of dir. All reference
expansions are done late, on demand. If a user needs to use a bare % in
- a configuration file, she can escape it by writing %%. Other other % usage
+ a configuration file, she can escape it by writing %%. Other % usage
is considered a user error and raises `InterpolationSyntaxError'."""
_KEYCRE = re.compile(r"%\(([^)]+)\)s")