the padded text
Tests out the left-padding of text with a custom text segment
string input = `Hello World `; string output = padLeft(input, "%"); string[] output_segments = output.split("\n"); writeln(output_segments); assert(output_segments[0] == "%Hello"); assert(output_segments[1] == "%World"); assert(output_segments[2] == "%");
Pads the left-hand margin of a multi-line string with the given text