--- a/mercurial/ui.py	Tue Feb 14 01:52:16 2017 +0530
+++ b/mercurial/ui.py	Mon Feb 13 21:00:50 2017 -0800
@@ -410,9 +410,9 @@
         >>> u.setconfig(s, 'float1', '42')
         >>> u.configwith(float, s, 'float1')
         42.0
-        >>> u.setconfig(s, 'float2', '-4.2')
+        >>> u.setconfig(s, 'float2', '-4.25')
         >>> u.configwith(float, s, 'float2')
-        -4.2
+        -4.25
         >>> u.configwith(float, s, 'unknown', 7)
         7
         >>> u.setconfig(s, 'invalid', 'somevalue')