fix comment

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1583866 13f79535-47bb-0310-9956-ffa450edef68
[MRM-1802] Find a cache solution for browsing part (especially root browsing)

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1583867 13f79535-47bb-0310-9956-ffa450edef68