
This fix addresses the case where there is no PVM launcher.

This fix addresses the case where there is no PVM launcher. This shouldn't
really ever be used, but it allows the PVM comm layer to exit gracefully
if we just manually run the commands without the launcher.



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@15569 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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