/usr/lib/perl5/auto/PDA/Pilot/autosplit.ix is in libpda-pilot-perl 0.12.5-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # Index created by AutoSplit for blib/lib/PDA/Pilot.pm
# (file acts as timestamp)
1;
|