docs: private static String[] aggregatePerHostResults(VoltTable vtable) {
          String[] ret = new String[2];
          vtable.advanceRow();
          String kitCheckResult = vtable.getString("KIT_CHECK_RESULT");
          String rootCheckResult = vtable.getString("ROOT_CHECK_RESULT");
          String xdcrCheckResult = vtable.getString("XDCR_CHECK_RESULT");
          StringBuilder result = new StringBuilder();
          if (!kitCheckResult.equals(SUCCESS)) {
              result.append(kitCheckResult).append("\n");
          }
          if (!rootCheckResult.equals(SUCCESS)) {
              result.append(rootCheckResult).append("\n");
          }
          if (!xdcrCheckResult.equals(SUCCESS)) {
              result.append(xdcrCheckResult);
          }
          if (result.length() == 0) {
              result.append(SUCCESS);
          }
  
          ret[0] = result.toString();
          String warnings = vtable.getString("WARNINGS");
          if (warnings != null) {
              ret[1] = warnings;
          }
  
          return ret;
      }