Center and outline some text with a given character
❯ ./outline.py "test message"
# #
# test message #
# #
❯ ./outline.py "test message" --height 5
# #
# #
# #
# test message #
# #
# #
# #
❯ ./outline.py "test message" --width 40
# #
# test message #
# #
❯ ./outline.py "test message" --header --footer --filler -
############################
#-------test message-------#
############################