[m-rev.] for review: report an error for multiple modes of operation

[Julien Fischer]

Hi Zoltan,

On Sun, 30 Aug 2015, Zoltan Somogyi wrote:

> On Sun, 30 Aug 2015 15:42:43 +1000 (AEST), Julien Fischer <jfischer at opturion.com> wrote:
>> The '--help' and
>> '--version' options are not included in this set and still take precedence over
>> any other command line options.
>
> I can understand why you left out --help; you don't want to put
> unnecessary obstacles before people who want help. But what was
> your reason for leaving out --version? The information it prints
> is very similar to the information printed by several of the op modes.
> (I don't much care one way or the other; I am just curious.)

That's the behaviour of most of the other compilers (and many other
command line tools) on my machine with respect to the --version option
(or its equivalent); in so far as users may have any expectations about
what --version does in relation to other modes of operation it seemed
best to meet them.

Julien.