EvilLeftPad
DO NOT USE THIS PACKAGE
EvilLeftPad is an example of how unexpected malicious code can be injected into your project.
See hoplon for details.
If you ever feel like you do need a library to pad your strings on the left, try String.pad_leading/3 instead:
iex> String.pad_leading("foobar", 10, "=")
"====foobar"