Bite 54. Nicer formatting of a poem or text

In this Bite you complete print_hanging_indents to print a poem (or text) in a nicer way.

For example calling it on (part of) Christina Rosetti's Remember it should convert:

                      Remember me when I am gone away,
                      Gone far away into the silent land;
                      When you can no more hold me by the hand,

                      Nor I half turn to go yet turning stay.

                      Remember me when no more day by day
                      You tell me of our future that you planned:
                      Only remember me; you understand

to:

Remember me when I am gone away,
    Gone far away into the silent land;
    When you can no more hold me by the hand,
Nor I half turn to go yet turning stay.
Remember me when no more day by day
    You tell me of our future that you planned:
    Only remember me; you understand

print the resulting poem (don't return it)! The tests include another text snippet from Shakespeare. Have fun!