/usr/share/perl/5.20.2/IO/ is in perl-modules 5.20.2-3+deb8u11.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl/5.20.2/IO/Compress/
/usr/share/perl/5.20.2/IO/Compress/Adapter/
/usr/share/perl/5.20.2/IO/Compress/Adapter/Bzip2.pm
/usr/share/perl/5.20.2/IO/Compress/Adapter/Deflate.pm
/usr/share/perl/5.20.2/IO/Compress/Adapter/Identity.pm
/usr/share/perl/5.20.2/IO/Compress/Base/
/usr/share/perl/5.20.2/IO/Compress/Base.pm
/usr/share/perl/5.20.2/IO/Compress/Base/Common.pm
/usr/share/perl/5.20.2/IO/Compress/Bzip2.pm
/usr/share/perl/5.20.2/IO/Compress/Deflate.pm
/usr/share/perl/5.20.2/IO/Compress/FAQ.pod
/usr/share/perl/5.20.2/IO/Compress/Gzip/
/usr/share/perl/5.20.2/IO/Compress/Gzip.pm
/usr/share/perl/5.20.2/IO/Compress/Gzip/Constants.pm
/usr/share/perl/5.20.2/IO/Compress/RawDeflate.pm
/usr/share/perl/5.20.2/IO/Compress/Zip/
/usr/share/perl/5.20.2/IO/Compress/Zip.pm
/usr/share/perl/5.20.2/IO/Compress/Zip/Constants.pm
/usr/share/perl/5.20.2/IO/Compress/Zlib/
/usr/share/perl/5.20.2/IO/Compress/Zlib/Constants.pm
/usr/share/perl/5.20.2/IO/Compress/Zlib/Extra.pm
/usr/share/perl/5.20.2/IO/Uncompress/
/usr/share/perl/5.20.2/IO/Uncompress/Adapter/
/usr/share/perl/5.20.2/IO/Uncompress/Adapter/Bunzip2.pm
/usr/share/perl/5.20.2/IO/Uncompress/Adapter/Identity.pm
/usr/share/perl/5.20.2/IO/Uncompress/Adapter/Inflate.pm
/usr/share/perl/5.20.2/IO/Uncompress/AnyInflate.pm
/usr/share/perl/5.20.2/IO/Uncompress/AnyUncompress.pm
/usr/share/perl/5.20.2/IO/Uncompress/Base.pm
/usr/share/perl/5.20.2/IO/Uncompress/Bunzip2.pm
/usr/share/perl/5.20.2/IO/Uncompress/Gunzip.pm
/usr/share/perl/5.20.2/IO/Uncompress/Inflate.pm
/usr/share/perl/5.20.2/IO/Uncompress/RawInflate.pm
/usr/share/perl/5.20.2/IO/Uncompress/Unzip.pm
/usr/share/perl/5.20.2/IO/Zlib.pm