Add machine name to default compiler performance directory
Add machine name to default compiler performance directory

[trivial not reviewed]

The default dir was just test/compperfdat. This changes it to
test/compperfdat/<host> to match the default performance directory and so that
you can have multiple tests from different machines. 


git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@23236 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

chizarlicious/chapel,sungeunchoi/chapel,sungeunchoi/chapel,sungeunchoi/chapel,hildeth/chapel,CoryMcCartan/chapel,chizarlicious/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,chizarlicious/chapel,chizarlicious/chapel,CoryMcCartan/chapel,hildeth/chapel,sungeunchoi/chapel,sungeunchoi/chapel,chizarlicious/chapel,sungeunchoi/chapel,hildeth/chapel,CoryMcCartan/chapel,chizarlicious/chapel,hildeth/chapel,hildeth/chapel,sungeunchoi/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,chizarlicious/chapel,CoryMcCartan/chapel,hildeth/chapel,hildeth/chapel