diff -r 1b27e1793156 -r 9a86d936670f mercurial/sslutil.py
--- a/mercurial/sslutil.py	Thu May 04 15:23:51 2017 +0900
+++ b/mercurial/sslutil.py	Mon May 08 09:30:26 2017 -0700
@@ -825,7 +825,7 @@
                               'remove the old one from [hostfingerprints] '
                               'to upgrade to a more secure SHA-256 '
                               'fingerprint: '
-                              '%s.fingerprints=%s)\n') % (
+                              '%s:fingerprints=%s)\n') % (
                                   host, host, nicefingerprint))
                 return