Each call to C<unimport> adds the specified features to the ones already in use in the current lexical scope.
-When C<@opts> is empty, it defaults to C<qw/fetch exists delete/>.
+When C<@opts> is empty, it defaults to C<< qw<fetch exists delete> >>.
=cut
sub unimport {
shift;
my $hint = _detag($^H{+(__PACKAGE__)}) || 0;
- @_ = qw/fetch exists delete/ unless @_;
+ @_ = qw<fetch exists delete> unless @_;
$hint |= $bits{$_} for grep exists $bits{$_}, @_;
$^H |= 0x00020000;
$^H{+(__PACKAGE__)} = _tag($hint);