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()