$ export PM_1194120_DEBUG=0
$ prove -v pm_1194120.t
pm_1194120.t .. 
1..2
ok 1 - Test: 1 == 1
ok 2 - Test: 1 != 0
ok
All tests successful.
Files=1, Tests=2,  ...
Result: PASS
$ prove pm_1194120.t
pm_1194120.t .. ok   
All tests successful.
Files=1, Tests=2,  ...
Result: PASS
$ prove pm_1194120.t > /dev/null
$