[perl #42427] [CAGE] cleanup perlcritic errors

[James Keenan via RT]

And, for good measure, I tried this:

$ perl t/harness t/codingstd/perlcritic.t 
t/codingstd/perlcritic......ok     
All tests successful.
Files=1, Tests=15, 29 wallclock secs ( 0.00 usr  0.00 sys + 24.11 cusr 
0.11 csys = 24.22 CPU)
Result: PASS

... which makes the 'make test' failure even weirder, since 'make test'
is nothing more than a 't/harness' call with specified args.  Cf.
config/gen/makefiles/root.in:

test : test_prep
    $(PERL) t/harness $(EXTRA_TEST_ARGS) $(PARROT_ARGS)