Temporarily revert a Darwin specific change that broke mmap PROT_NONE followed by

mprotect PROT_READ|PROT_WRITE.

http://bugs.kde.org/show_bug.cgi?id=210268

--- valgrind-3.5.0/memcheck/mc_main.c.jj	2009-10-09 12:51:59.000000000 +0200

+++ valgrind-3.5.0/memcheck/mc_main.c	2009-10-12 17:13:26.000000000 +0200

@@ -3705,7 +3705,7 @@ static

 void mc_new_mem_mmap ( Addr a, SizeT len, Bool rr, Bool ww, Bool xx,

                        ULong di_handle )

 {

-   if (rr || ww || xx)

+   if (1 || rr || ww || xx)

       MC_(make_mem_defined)(a, len);

    else

       MC_(make_mem_noaccess)(a, len);