/usr/share/perl6/lib/newline.pm6 is in rakudo 2015.11-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | package EXPORT::crlf { BEGIN OUR::<$?NL> := "\x0D\x0A" }
package EXPORT::cr { BEGIN OUR::<$?NL> := "\x0D" }
package EXPORT::lf { BEGIN OUR::<$?NL> := "\x0A" }
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