log time to merge indexes

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1443760 13f79535-47bb-0310-9956-ffa450edef68
use more simple style

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1443761 13f79535-47bb-0310-9956-ffa450edef68