diff -r 6f62a1c3e11d -r 35fb3367f72d mercurial/verify.py
--- a/mercurial/verify.py	Fri Dec 29 05:28:05 2017 +0530
+++ b/mercurial/verify.py	Fri Dec 29 05:29:04 2017 +0530
@@ -17,6 +17,7 @@
 
 from . import (
     error,
+    pycompat,
     revlog,
     scmutil,
     util,
@@ -105,7 +106,8 @@
                                     if self.lrugetctx(l)[f].filenode() == node]
                     except Exception:
                         pass
-                self.warn(_(" (expected %s)") % " ".join(map(str, linkrevs)))
+                self.warn(_(" (expected %s)") % " ".join
+                          (map(pycompat.bytestr, linkrevs)))
             lr = None # can't be trusted
 
         try: