Modified fork setup script to return error information from fork/exec in a GT3 extended error string.  This error info is also printed to job's stderr.
Modified fork setup script to return error information from fork/exec in a GT3
extended error string.  This error info is also printed to job's stderr.

(for Campaign 278: Improve Errors in MJS Scheduler Submission Script)

globus/globus-toolkit,globus/globus-toolkit,globus/globus-toolkit,globus/globus-toolkit,gridcf/gct,globus/globus-toolkit,ellert/globus-toolkit,ellert/globus-toolkit,globus/globus-toolkit,ellert/globus-toolkit,gridcf/gct,ellert/globus-toolkit,globus/globus-toolkit,gridcf/gct,ellert/globus-toolkit,gridcf/gct,gridcf/gct,gridcf/gct,ellert/globus-toolkit,ellert/globus-toolkit,ellert/globus-toolkit,globus/globus-toolkit