btar-1.1.1-bp155.3.11

- Fix building with gcc10

- Cleanup spec file with spec-cleaner
- Add btar-librsync.patch to fix building with librsync >= 1.0.0

- update to 1.1.1:
  * fixing a fd leak to filters: that broke often the parallelism of "-jN"

- update to 1.1:
  * adding the -m capability to change the filters of a given btar file
  * performance improvements (string manipulation)
  * adding -U, to filter only the index/deleted
  * fixing -H so, in case of extracting specific paths, it only attmepts to
    delete files complying the pattern
- changes from 1.0.0:
  * adding a manual page
  * store of the files deleted into differential archives

- update to 0.9.2:
  * fixing a bug extracting files over 8.5GB
  * fixing a bug extracting about leaking fds

- update to 0.9.1:
  * added headers for it to build in platforms other than Linux
  * fixing troubles with long file names when 'tar c | btar'
  * avoid storing directories where no files changed, in differential archives

- initial version (0.9)