Log Message:
PkgSrc changes:
  - removed packages p5-IO-Compress-Base, p5-IO-Compress-Zlib,
    p5-IO-Compress-Bzip2 and p5-Compress-Zlib because they are
    merged into p5-IO-Compress
  - Updated dependend packages to depend on p5-IO-Compress
    and bump PKGREVISION

Upstream changes:
  2.017 30 March 2009

      * Merged IO-Compress-Base, IO-Compress-Bzip2, IO-Compress-Zlib &
        Compress-Zlib into IO-Compress.
      * The interface to Compress-Raw-Zlib now uses the new LimitOutput
        feature. This will make all of the zlib-related IO-Compress modules
        less greedy in their memory consumption.
      * Removed MAN3PODS from Makefile.PL
      * A few changes to get the test harness to work on VMS courtesy of
        Craig. A. Berry.
      * IO::Compress::Base & IO::Uncompress::Base
        Downgraded some croaks in the constructors to just set $! (by letting
        the code attempt to open a file and fail).
        This makes the behavior more consistent to a standard open.
        [RT #42657]
      * IO::Uncompress::Base
        Doing a seek with MultiStream could drop some of the uncompressed
        data. Fixed.
      * IO::Compress::Zip
        - Fixed problem with the uncompressed & uncompressed fields when
          zip64 is enabled. They were set to 0x0000FFFF instead of
          0xFFFFFFFF. Also the ZIP64 extra field was 4 bytes short.
          Problem spotted by Dino Chiesa.
      * IO::Uncompress::Unzip
        - use POSIX::mktime instead of Time::Local::timelocal to convert
          the zip DOS time field into Unix time.
      * Compress::Zlib
        - Documented Compress::Zlib::zlib_version()