cmdstate: switch to new-style classes
This isn't a huge issue and isn't necessary on Python3, but we're still Python2
compatible and we should be consistent (and strongly prefer new-style classes);
this is the only class that is not deriving from object that I could find.
--- a/hgext3rd/evolve/state.py Tue Sep 24 12:42:27 2019 +0200
+++ b/hgext3rd/evolve/state.py Mon Sep 16 12:42:11 2019 -0700
@@ -27,7 +27,7 @@
from mercurial.i18n import _
-class cmdstate():
+class cmdstate(object):
"""a wrapper class to store the state of commands like `evolve`, `pick`
All the data for the state is stored in the form of key-value pairs in a