message: fix for non-terminating loop condition
diff: @@ -1290,10 +1290,11 @@ namespace eosio {
  cptr = my_impl->connections.begin();
  } else {
  //was found - advance the start to the next. cend is the old source.
  - if (++cptr == my_impl->connections.end())
  + if (++cptr == my_impl->connections.end() && cend != my_impl->connections.end() ) {
  cptr = my_impl->connections.begin();
  }
  }
  + }
  //scan the list of peers looking for another able to provide sync blocks.
  while (cptr != cend) {
  