The following exit values shall be returned:
0 All invocations of utility returned exit status zero.
1‐125 A command line meeting the specified requirements could
not be assembled, one or more of the invocations of
utility returned a non-zero exit status, or some other
error occurred.
126 The utility specified by utility was found but could not
be invoked.
127 The utility specified by utility could not be found.
