Log Message:
Update to 1.2, provided by Allen Briggs in PR 20603.
Changes:
1.2   Fri Jul 27 10:46:56 METDST 2001
        - converting undef now always returns undef
        - since HP-UX seems to be the only platform where the second
          argument to iconv() is *not* const char**, put an #ifdef
          into Iconv.xs