Fixing a discrepancy between the warning message and the actual default set for CHPL_TEST_PERF_DIR, pointed out by Brad.  Also, edited a comment to reflect the new default value.
Fixing a discrepancy between the warning message and the actual default set
for CHPL_TEST_PERF_DIR, pointed out by Brad.  Also, edited a comment to reflect
the new default value.



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@21779 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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