Issue #25523: Further a-to-an corrections new in 3.5
diff --git a/Lib/signal.py b/Lib/signal.py
index 371d712..9f05c91 100644
--- a/Lib/signal.py
+++ b/Lib/signal.py
@@ -34,7 +34,7 @@
 
 def _enum_to_int(value):
     """Convert an IntEnum member to a numeric value.
-    If it's not a IntEnum member return the value itself.
+    If it's not an IntEnum member return the value itself.
     """
     try:
         return int(value)