This function is set through optional argument scriptExec in the sleigh
constructor. It uses Python to execute a worker script.
Arguments
Details
This function indicates that configuration variables
such as RSleighName and RSleighNwsName are passed as part of
the worker script arguments rather than through the env command.
This is often useful on systems that do not support the env command.
scriptcmd is the default choice to execute worker scripts on Windows.