Merge branch 'usemmapforstack' of github.com:omoerbeek/pdns into usemmapforstack

diff --cc pdns/lazy_allocator.hh
index 629981c2cd8637e026132065d68b51c43bb990e7,629981c2cd8637e026132065d68b51c43bb990e7..4851687ba6f3c1079533b0325119f70e99b7c14c
--- 1/pdns/lazy_allocator.hh
--- 2/pdns/lazy_allocator.hh
+++ b/pdns/lazy_allocator.hh
@@@ -43,7 -43,7 +43,7 @@@ struct lazy_allocator 
  
      pointer
      allocate (size_type const n) {
--        void *p = mmap(NULL, n * sizeof(value_type),
++        void *p = mmap(nullptr, n * sizeof(value_type),
            PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON | MAP_STACK, -1, 0);
          if (p == MAP_FAILED)
            throw std::bad_alloc();