Added syscalls flock and fchmod, required for parsec dedup app
Added syscalls flock and fchmod, required for parsec dedup app

victorisildur/Graphite,8l/Graphite,8l/Graphite,fhijaz/Graphite,fhijaz/Graphite,victorisildur/Graphite,mit-carbon/Graphite,mit-carbon/Graphite,nkawahara/Graphite,victorisildur/Graphite,mit-carbon/Graphite,nkawahara/Graphite,nkawahara/Graphite,8l/Graphite,nkawahara/Graphite,fhijaz/Graphite,8l/Graphite,fhijaz/Graphite,mit-carbon/Graphite,victorisildur/Graphite