Returns a platform-specific string representing the
line-end characters.
It returns '0d 0a'x (carriage-return, line-feed) on Windows,
and '0a'x (line-feed) on Unix-like systems.
See also the environment symbol .ENDOFLINE,
which provides the same information.
Example 5.287. RexxInfo class — endofline method
say.RexxInfo~endofline-- '0d 0a'x /* Windows */say.RexxInfo~endofline-- '0a'x /* Unix-like system */