diff mercurial/error.py @ 45957:89a2afe31e82

formating: upgrade to black 20.8b1

This required a couple of small tweaks to un-confuse black, but now it
works. Big formatting changes come from:

 * Dramatically improved collection-splitting logic upstream
 * Black having a strong (correct IMO) opinion that """ is better than '''

Differential Revision: https://phab.mercurial-scm.org/D9430

--- a/mercurial/error.py	Fri Nov 27 17:00:00 2020 -0500
+++ b/mercurial/error.py	Fri Nov 27 17:03:29 2020 -0500
@@ -394,8 +394,7 @@
 
 
 class UnknownVersion(Abort):
-    """generic exception for aborting from an encounter with an unknown version
-    """
+    """generic exception for aborting from an encounter with an unknown version"""
 
     def __init__(self, msg, hint=None, version=None):
         self.version = version