Bug correction. See https://github.com/awltech/org.parallelj/issues/89

Can launch a Program with invalid arguments..
Merge branch 'master' of https://github.com/awltech/org.parallelj

* 'master' of https://github.com/awltech/org.parallelj:
  Bug correction. See https://github.com/awltech/org.parallelj/issues/89