String buildRowGroup(boolean isTabularResult) {
    colSizes = computeColSizes(isTabularResult);

    StringBuilder stringBuilder = new StringBuilder();
    for (Row row : rows) {
      String builtRow = row.buildRow(isTabularResult);
      stringBuilder.append(builtRow);
      if (StringUtils.isNotBlank(builtRow) || row.isBlank()) {
        stringBuilder.append(GfshParser.LINE_SEPARATOR);
      }
    }
    return stringBuilder.toString();
  }
A group of rows. Widths for all columns within a group will be the same and when built will
automatically be set to the length of the longest value in the column.

@since GemFire 7.0
geode-gfsh/src/main/java/org/apache/geode/management/internal/cli/result/RowGroup.java