[PATCH] manual: fopen with the x flag does not follow ISO C11

[Paul Eggert]

On 12/10/19 4:18 AM, Florian Weimer wrote:
> I think it is worth clarifying that glibc's x specifier only results in
> O_EXCL and nothing else.

Although the glibc manual already says "x" means O_EXCL, I agree it'd be 
nice for it to also say that this behavior is compatible with ISO C. 
That is, the manual shouldn't imply that some standards require behavior 
other than O_EXCL.

How about the attached patch?

A different topic: shouldn't the manual refer to ISO C18 (the current 
version of the C standard) rather than to ISO C11 (the previous one)?
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