p4raw-id: //depot/perl@19181
Applying the <:raw> layer is equivalent to calling C<binmode($fh)>.
It makes the stream pass each byte as-is without any translation.
-In particular CRLF translation, and/or :utf8 inuited from locale
+In particular CRLF translation, and/or :utf8 intuited from locale
are disabled.
Arranges for all accesses go straight to the lowest buffered layer provided