message: allow blacklist test to be invoked individually
diff: @@ -255,7 +255,7 @@ proc load_tests { } {
  continue
  }
  }
  - if {[dict exists $BLACK_LIST $testname]} {
  + if {($ONETEST == "") && [dict exists $BLACK_LIST $testname]} {
  # Ignore black listed ones
  continue
  }
  