message: Fix warning in the MAC check macro about extra tokens at end of #ifdef directive
diff: #include <leveldb/env.h>
  #include <leveldb/filter_policy.h>
  // #include <memenv.h>
  -#ifdef __APPLE__ && __MACH__
  +#if defined(__APPLE__) && defined(__MACH__)
  #include <helpers/memenv/memenv.h> // qtum
  #else
  #include <leveldb/helpers/memenv.h> // qtum
  