Bareword "Perlito5::Java::pkg" not allowed 

Hello!

Thanks for putting this together.

Running
```
perlito5 -h
```
I'm getting this error:
```
Bareword "Perlito5::Java::pkg" not allowed while "strict subs" in use at /usr/local/share/perl/5.30.0/Perlito5/Java/Emitter.pm line 1667.
```
following `sudo cpanm install Perlito5` on `Ubuntu 20.04`.

Any ideas?
