Improve log output in the repository cache sync method. Not systematic entry is output, and report more details when interesting things happen.
Improve log output in the repository cache sync method. Not systematic entry is output, and report more details when interesting things happen.

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@5071 af82e41b-90c4-0310-8c96-b1721e28e2e2

exocad/exotrac,dafrito/trac-mirror,exocad/exotrac,dokipen/trac,moreati/trac-gitsvn,exocad/exotrac,moreati/trac-gitsvn,dokipen/trac,moreati/trac-gitsvn,dafrito/trac-mirror,exocad/exotrac,dafrito/trac-mirror,dokipen/trac,moreati/trac-gitsvn,dafrito/trac-mirror