Bug#839982: axi-cache: xapian.FeatureUnavailableError: Flint backend no longer supported

[John <jl.debbugtrac@gmail.com>]

To confirm the earlier reports, I get the FeatureUnavailableError message also:

/etc/cron.weekly/apt-xapian-index:
Traceback (most recent call last):
  File "/usr/sbin/update-apt-xapian-index", line 102, in <module>
    indexer.incrementalUpdate()
  File "/usr/lib/python2.7/dist-packages/axi/indexer.py", line 670, in incrementalUpd
+ate
    self.updateIndex(dbpath)
  File "/usr/lib/python2.7/dist-packages/axi/indexer.py", line 629, in updateIndex
    db = xapian.WritableDatabase(pathname, xapian.DB_CREATE_OR_OPEN)
  File "/usr/lib/python2.7/dist-packages/xapian/__init__.py", line 8619, in __init__
    _xapian.WritableDatabase_swiginit(self, _xapian.new_WritableDatabase(*args))
xapian.FeatureUnavailableError: Flint backend no longer supported
run-parts: /etc/cron.weekly/apt-xapian-index exited with return code 1