NAME
        SetArgStr -- Sets the arguments for the current process (V36)

   SYNOPSIS
        oldptr = SetArgStr(ptr)
        D0                 D1

        strptr setargstr(strptr)

   FUNCTION
        Sets the arguments for the current program.  The ptr MUST be reset
        to it's original value before process exit.

   INPUTS
        ptr - pointer to new argument string.

   RESULT
        oldptr - the previous argument string

   SEE ALSO
        getargstr(), runcommand()