diff -r ca4a32d0a4d6 -r 57500950f40e mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Tue Oct 09 07:46:01 2018 +0900
+++ b/mercurial/cmdutil.py	Tue Oct 09 12:56:11 2018 -0700
@@ -581,7 +581,7 @@
     if unresolvedlist:
         mergeliststr = '\n'.join(
             ['    %s' % util.pathto(repo.root, encoding.getcwd(), path)
-             for path in unresolvedlist])
+             for path in sorted(unresolvedlist)])
         msg = _('''Unresolved merge conflicts:
 
 %s