The functions ord, chr, print, and say should default to $_ if no arg is given

[snoopyjc]

The functions ord, chr, print, and say should default to $_ if no arg is given. For print and say, giving one arg FH should also print $_ when FH is a bareword. Instead, bad code is generated.

[snoopyjc]

Fixed in https://github.com/snoopyjc/pythonizer