Add height to "Requesting block" debug

src/main.cpp

@@ -4465,7 +4465,8 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
             BOOST_FOREACH(CBlockIndex *pindex, vToDownload) {
                 vGetData.push_back(CInv(MSG_BLOCK, pindex->GetBlockHash()));
                 MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), pindex);
-                LogPrint("net", "Requesting block %s peer=%d\n", pindex->GetBlockHash().ToString(), pto->id);
+                LogPrint("net", "Requesting block %s (%d) peer=%d\n", pindex->GetBlockHash().ToString(),
+                    pindex->nHeight, pto->id);
             }
             if (state.nBlocksInFlight == 0 && staller != -1) {
                 if (State(staller)->nStallingSince == 0) {