[cage] config/gen/core_pmcs.pm: ro pm, align comments
[cage] config/gen/core_pmcs.pm: ro pm, align comments

minor config/gen/core_pmcs.pm improvements:
  remove hard tabs in generated .pm
  set buffer-read-only:t in generated .pm
  rename internal code() to c_coda(), not used for .pm
  align numbers in comments in include/parrot/core_pmcs.h

FROGGS/parrot,tkob/parrot,parrot/parrot,tkob/parrot,FROGGS/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,tkob/parrot,parrot/parrot,tkob/parrot,FROGGS/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,parrot/parrot,FROGGS/parrot,FROGGS/parrot,FROGGS/parrot,tkob/parrot,parrot/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,parrot/parrot,FROGGS/parrot,tkob/parrot,tkob/parrot