Fix dependencies of PBC_TEST_FILES
Fix dependencies of PBC_TEST_FILES

This makes 'make -j2 test' work from clean build dir and makes sure that
the test files are regenerated after a new build.

gagern/parrot,parrot/parrot,youprofit/parrot,gitster/parrot,parrot/parrot,gitster/parrot,gitster/parrot,fernandobrito/parrot,gitster/parrot,tewk/parrot-select,gitster/parrot,youprofit/parrot,parrot/parrot,youprofit/parrot,tkob/parrot,tewk/parrot-select,tewk/parrot-select,gagern/parrot,fernandobrito/parrot,fernandobrito/parrot,parrot/parrot,tkob/parrot,tkob/parrot,fernandobrito/parrot,gagern/parrot,gagern/parrot,fernandobrito/parrot,tkob/parrot,parrot/parrot,youprofit/parrot,tkob/parrot,tkob/parrot,gitster/parrot,FROGGS/parrot,tkob/parrot,fernandobrito/parrot,gagern/parrot,tewk/parrot-select,gagern/parrot,FROGGS/parrot,gitster/parrot,tewk/parrot-select,youprofit/parrot,FROGGS/parrot,FROGGS/parrot,tewk/parrot-select,gagern/parrot,FROGGS/parrot,fernandobrito/parrot,tewk/parrot-select,youprofit/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,FROGGS/parrot,FROGGS/parrot