--- a/mercurial/pure/mpatch.py	Fri Nov 27 17:00:00 2020 -0500
+++ b/mercurial/pure/mpatch.py	Fri Nov 27 17:03:29 2020 -0500
@@ -15,8 +15,7 @@
 
 
 class mpatchError(Exception):
-    """error raised when a delta cannot be decoded
-    """
+    """error raised when a delta cannot be decoded"""
 
 
 # This attempts to apply a series of patches in time proportional to