append '/' to $X509_CERT_DIR if it doesn't already end with '/', since later we assume it
append '/' to $X509_CERT_DIR if it doesn't already end with '/',
since later we assume it

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