$(padEnd)
$(padEnd [length] [char] [text])
Pads the end of the text with char until it is length characters long. The pad character may be quoted ('.') — use ' ' for a space.
Examples
$(padEnd 5 . 42)
Will display "42..."
$(padEnd 12 ' ' {{username}})
Will display the username padded with spaces to 12 characters — useful for aligning columns in monospace text.