[opengrok] Only search sub-directories one level - if not it takes too much time for large Mercurial installations

[jorgen.aust...@sun.com]

Author: Jorgen Austvik <jorgen.austvik at sun.com>
Repository: /hg/opengrok/trunk
Latest revision: ea6814461b399f193c77ee439833d3fff5be604a
Total changesets: 1
Log message:
Only search sub-directories one level - if not it takes too much time for large 
Mercurial installations

Files:
        update: src/org/opensolaris/opengrok/history/HistoryGuru.java