[PATCH] Fix broken overflow check in posix_fallocate

[Paul Eggert]

Carlos O'Donell wrote:
> I think Paul is the only one
> who does this

It's standard in many other GNU projects (e.g., gnulib, coreutils), and fits 
well with the common Git style for commit messages.  GCC and GNU Emacs 
developers often use this style too, now, though not always.

It's a reasonable style and glibc should allow patches that use it, if only so 
that it's one less thing for occasional contributors to worry about.