Improve logging and set eof when finished
Improve logging and set eof when finished

(cherry picked from commit 6e7f57f0ac5af891cbe222c01930ca84c6ef106e)

uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend