Re: style: clean up mentions of old-style C

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>>> [...] a main() that expects the env argument.
>> I don't think I've *ever* seen that used.
> Neither have I.

I think I have, but not often and long enough ago I'm not sure of
details.

> I see no problem in disallowing the env arg to main, it's not in any
> (modern?) C standard anyway.

It's sort-of in C99, though I don't know whether you count that as
"modern".  5.1.2.2.1 #1 says that "The function called at program
startup is named main.  The implementation declares no prototype for
this function.  It shall be defined with a return type of int and with
no parameters [...example...] or with two parameters [...example...] or
equivalent; or in some other implementation-defined manner.".  The part
after the last semicolon looks to me as though it allows _any_
declaration for main, from the traditional argc,argv,envp to
int main(struct stat *, pid_t, pid_t, void *, const double * const *),
though clause #2 may require it to have parameters that operate like
argc and argv.  I'm not sure about a return type other than int.

Given C's tendency to codify existing practice, I suspect you'll have a
hard time finding a C standard that forbids argc,argv,envp.

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