[PATCH] D14643: [tsan] Mark dl_iterate_phdr.cc test as unsupported on OS X

[Joerg Sonnenberger via llvm-commits]

On Fri, Nov 13, 2015 at 10:24:19AM +0000, Kuba Brecka via llvm-commits wrote:
> The `dl_iterate_phdr` is not present on OS X.

In that case, please use that as comment as well. Positive lists are
harder to maintain.

Joerg