postd: Fix divide by zero in rebuild.


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6057 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
posted: better timer.


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6058 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
py: Prevent execption in wrong-format.


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6059 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
Fix list.index


git-svn-id: http://opensvn.csie.org/pttbbs/trunk@6060 63ad8ddf-47c3-0310-b6dd-a9e9d9715204