Move comments to text and expand

Author: JJ

doc/Language/io.pod6

@@ -132,11 +132,14 @@ rename $filea, 'new-foo', :createonly; # fails if 'new-foo' exists
 move $fileb, '/disk2/foo';              # overwrites '/disk2/foo' if it exists
 move $fileb, '/disk2/foo', :createonly; # fails if '/disk2/foo' exists
 
-unlink $filea;    # removes $filea if it exists, fails with incorrect permissions
-$fileb.IO.unlink; # removes $fileb if it exists, fails with incorrect permissions
-
+unlink $filea;
+$fileb.IO.unlink;
 =end code
 
+The two C<unlink> sentences remove their argument if it exists, unless the
+user does not have the correct permissions to do so; in that case, it raises
+an exception.
+
 =head1 Checking files and directories
 
 Use the C<e> method on an C<IO::Handle> object to test whether the file or