--- a/hgext3rd/evolve/stablerange.py	Wed Sep 25 18:23:37 2019 +0200
+++ b/hgext3rd/evolve/stablerange.py	Wed Sep 25 19:31:44 2019 +0200
@@ -6,7 +6,7 @@
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
-"""stable range
+r"""stable range
 
 General Goals and Properties
 ---------------------------