$ perl -e 'goto print'
Can't find label 1 at -e line 1.
-It would be nice to forbid labels with keyword names, to avoid confusion.
+It is controversial if the right way to avoid the confusion is to forbid
+labels with keyword names, or if it would be better to always treat
+bareword expressions after a "goto" as a label and never as a keyword.
=head2 truncate() prototype