Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
devel/p5-multidimensional.
Perl's multidimensional array emultaion stems from the days before
the language had references, but these days it mostly serves to bite
you when you typo a hash slice by using the $ sigil instead of @.
This module lexically makes using multidmensional array emulation a
fatal error at compile time.