Bar not updating right

[Billkyriaf]

The bar is not updating right when the number of iterations is less than 52

Steps to reproduce:

Use the following for loop

progressbar p_bar(29);

for (int i = 0; i < 29; ++i){
    bar.update();

   // Do the work...
}

Expected Output upon completion:

[################################################] 100%

Actual output upon completion:

[   # #      # #    # # #    # #      # #    # ##] 100%