simplewallet: add the change amount to the prompt when locking

src/simplewallet/simplewallet.cpp

@@ -5914,12 +5914,14 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
         uint64_t total_fee = 0;
         uint64_t dust_not_in_fee = 0;
         uint64_t dust_in_fee = 0;
+        uint64_t change = 0;
         for (size_t n = 0; n < ptx_vector.size(); ++n)
         {
           total_fee += ptx_vector[n].fee;
           for (auto i: ptx_vector[n].selected_transfers)
             total_sent += m_wallet->get_transfer_details(i).amount();
           total_sent -= ptx_vector[n].change_dts.amount + ptx_vector[n].fee;
+          change += ptx_vector[n].change_dts.amount;
 
           if (ptx_vector[n].dust_added_to_fee)
             dust_in_fee += ptx_vector[n].dust;
@@ -5957,7 +5959,7 @@ bool simple_wallet::transfer_main(int transfer_type, const std::vector<std::stri
         if (transfer_type == TransferLocked)
         {
           float days = locked_blocks / 720.0f;
-          prompt << boost::format(tr(".\nThis transaction will unlock on block %llu, in approximately %s days (assuming 2 minutes per block)")) % ((unsigned long long)unlock_block) % days;
+          prompt << boost::format(tr(".\nThis transaction (including %s change) will unlock on block %llu, in approximately %s days (assuming 2 minutes per block)")) % cryptonote::print_money(change) % ((unsigned long long)unlock_block) % days;
         }
         if (m_wallet->print_ring_members())
         {