Don't report rounded stats too often.

ChangeLog

@@ -4,6 +4,9 @@
 	* src/server/stats.c (check_one_stat): Fixed the logic that
 	determines if we need to fix a rounding error.  Report the values
 	using %g instead of %f.
+	(is_nonzero): New static function.
+	(check_one_stat): Don't report very small rounding errors when the
+	correct value is 0.
 
 	Port to Solaris 2.4, which lacks snprintf.
 	* configure.in: Check for snprintf.