Improve documentation PERLIO default value in perlrun.pod

Message-ID: <jhhdr21vmlo5ccbfd8la2di4bq8crv3s8t@4ax.com>

p4raw-id: //depot/perl@29941

diff --git a/pod/perlrun.pod b/pod/perlrun.pod
index e3f9f1e..592a7b9 100644 (file)
--- a/pod/perlrun.pod
+++ b/pod/perlrun.pod
@@ -1056,7 +1056,8 @@ layer specification strings (which is also used to decode the PERLIO
 environment variable) treats the colon as a separator.
 
 An unset or empty PERLIO is equivalent to the default set of layers for
-your platforms, for example C<:unix:perlio>.
+your platform, for example C<:unix:perlio> on UNIX-like systems
+and C<:unix:crlf> on Windows and other DOS-like systems.
 
 The list becomes the default for I<all> perl's IO. Consequently only built-in
 layers can appear in this list, as external layers (such as :encoding()) need