If LAYER is omitted or specified as C<:raw> the filehandle is made
suitable for passing binary data. This includes turning off possible CRLF
translation and marking it as bytes (as opposed to Unicode characters).
-Note that as despite what may be implied in I<"Programming Perl">
-(the Camel) or elsewhere C<:raw> is I<not> the simply inverse of C<:crlf>
+Note that, despite what may be implied in I<"Programming Perl"> (the
+Camel) or elsewhere, C<:raw> is I<not> the simply inverse of C<:crlf>
-- other layers which would affect binary nature of the stream are
I<also> disabled. See L<PerlIO>, L<perlrun> and the discussion about the
PERLIO environment variable.