simplewallet: allow setting --restore-height 0

src/simplewallet/simplewallet.cpp

@@ -4519,7 +4519,7 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
       password = *r;
       welcome = true;
       // if no block_height is specified, assume its a new account and start it "now"
-      if(m_wallet->get_refresh_from_block_height() == 0) {
+      if (command_line::is_arg_defaulted(vm, arg_restore_height)) {
         {
           tools::scoped_message_writer wrt = tools::msg_writer();
           wrt << tr("No restore height is specified.") << " ";