Updating devel/p5-Compress-Raw-Zlib from 2.024 to 2.030

Upstream changes:
  2.030 22 July 2010
      * Ran the zlib2ansi script against the files in zlib-src.
        Thanks to Nicholas Clark for the reminder.
      * Added "-DNO_VIZ" to DEFINE in Makefile.PL
        [RT #65293]

  2.027 24 April 2010
      * Updated to include zlib 1.2.5

  2.026 7 April 2010
      * Fixed definition of Z_TREES in Makefile.PL
        [RT #65293]
      * Fixed build issue with definition of off64_t not found on Solaris
        by modifying the zlib source - changed the symbol
        _LARGEFILE64_SOURCE to _LARGEFILE64_SOURCE_dummy in zconf.h,
        zlib.h and zutil.h
        [RT #56108]

  2.025 27 March 2010
      * Updated to include zlib 1.2.4
      * Allow zlib version check to be disabled by setting
        TEST_SKIP_VERSION_CHECK environment variable.
        [RT #54510]

(sno)