message: For testnet: fix wrong operation CBigNum
diff: @@ -2388,7 +2388,8 @@ unsigned int static GetNextWorkRequired(const CBlockIndex* pindexLast, const CBl
  if (fTestNet && pindexLast->nHeight + 1 == 90) {
  CBigNum bnNew;
  - bnNew.SetCompact((pindexLast->nBits)*100);
  + bnNew.SetCompact(pindexLast->nBits);
  + bnNew *= 10;
  printf("Lyra2Z HF - Before: %08x %.8f\n", pindexLast->nBits, GetDifficultyHelper(pindexLast->nBits));
  printf("Lyra2Z HF - After: %08x %.8f\n", bnNew.GetCompact(), GetDifficultyHelper(bnNew.GetCompact()));
  return bnNew.GetCompact();
  