improve code: - reindent - display slot information - display error messages
improve code:
- reindent
- display slot information
- display error messages


git-svn-id: 04318667fc39761f48bc18238d07dedbdf62ef18@29 6d86ddd8-19ff-0310-a323-aa2ba648d307

Bluehorn/libp11,Bluehorn/libp11