From: "Paul Marquess" <Paul.Marquess@Openwave.com>
Message-ID: <AIEAJICLCBDNAAOLLOKLOENDEAAA.Paul.Marquess@Openwave.com>
p4raw-id: //depot/perl@15530
# perlio [PerlIO_parse_layers]
no warnings 'layer';
open(F, ">:xyz", "bb");
-#use warnings 'layer';
-use warnings ;
+use warnings 'layer';
open(F, ">:xyz", "bb");
EXPECT
perlio: unknown layer "xyz".