Update to 2.01080607
    
    - New upstream release 2.01080607
      - Correct the documention about fraction of witnesses from ≳ 0.25 to ≳ 0.75
      - Define HAS_STAT and HAS_OPENDIR based on $Config{i_sysstat} and
        $Config{i_dirent}
      - Correct spelling errors in POD and comments in Pari.pm
      - On AIX, do merge_822 separately in subdirectories (exceeds command line
        length otherwise)
      - On pari ≳ 2.3.0, reset had-newline-on-output to 1 at startup (saves one
        spurious NL)
      - New patch: diff_2.3.5_stderr_clobber
      - New test: 01_no_extra_newlines.t
      - Allow download not only via FTP, but also through HTTP
      - In presence of PERL5_CPAN_IS_RUNNING, assume that NO ANSWER on prompt is
        agreement (it looks like cygwin and MSWin32 automated-testing environment
        do not have AUTOMATED_TESTING and PERL_MM_USE_DEFAULT set...)
      - Do not auto-download on 64-bit builds of MSWin32