docs: private String getRowLineBuf(int colCount, List<Integer> colMaxLenList, String[][] data) {
  		
  		S.Buffer rowBuilder = S.buffer();
  		int colWidth;
  		
  		for (int i = 0 ; i < colCount ; i ++) {
  			
  			colWidth = colMaxLenList.get(i) + 3;
  			
  			for (int j = 0; j < colWidth ; j ++) {
  				if (j==0) {
  					rowBuilder.append("+");
  				} else if ((i+1 == colCount && j+1 == colWidth)) {//for last column close the border
  					rowBuilder.append("-+");
  				} else {
  					rowBuilder.append("-");
  				}
  			}
  		}
  		
  		return rowBuilder.append("\n").toString();
  	}