coreutils-8.15.74-be17e3 on HP-UX 11

[Bruno Haible]

On HP-UX 11.00 with the 'cc' compiler, 2 tests fail:

FAIL: misc/sort-discrim

FAIL: dd/sparse

These failures are new, compared to
<https://lists.gnu.org/archive/html/coreutils/2012-01/msg00037.html>.

Bruno