LY_DEFINE (ly_option_usage, "ly:option-usage", 0, 1, 0, (SCM port),
"Print @code{ly:set-option} usage. Optional @var{port} argument"
- "for the destination defaults to current output port.")
+ "for the destination defaults to current output port.")
{
SCM str = scm_from_locale_string (get_help_string ().c_str ());
scm_write_line (str, port);