Small cleanups to thread.c. No functional changes
Small cleanups to thread.c. No functional changes

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