switch the helper on NSTask over to a static function incase anyone ever wanted   to use this code in some plugin where categories get dangerous.
switch the helper on NSTask over to a static function incase anyone ever wanted
  to use this code in some plugin where categories get dangerous.


git-svn-id: 741c308154f1e22deafec9707230e8b816ec4ca6@12 7dc7ac4e-7543-0410-b95c-c1676fc8e2a3

chao787/GTM-mirror,chao787/GTM-mirror,chao787/GTM-mirror