On Fri, Apr 6, 2012 at 14:53, rosenfeld (Rodrigo Rosenfeld Rosas)
<rr.rosas / gmail.com> wrote:

> What is this ('concatenation' 'syntax') useful for?

raise ArgumentError,
  'they are useful for long strings that are so long that they need ' \
  'to span multiple lines to fit within a reasonable line width'