vchoi_fork

[svn-r1289] Removed RUNTEST before the /bin/sh because all the systems that is
known so far do not need a "launching command" to run shell script.
(If a future system needs it, maybe we should use a new VARIABLE
called RUNSHELL, default to /bin/sh, to do the launching.)

Then inside the test shell script, it needs to know how to launch
serial or parallel executions.  So, pass the RUNSERIAL and RUNPARALLEL
variables to the /bin/sh command.