bug#11424: coreutils: split tests hang on /dev/zero on GNU/Hurd

[Paul Eggert]

On 05/07/2012 12:46 AM, Jim Meyering wrote:
> +
> +  /* stat.st_size is valid only for regular files.  For others, use 0.  */
> +  file_size = S_ISREG (stat_buf.st_mode) ? stat_buf.st_size : 0;

Is it right to use 0 there, for non-regular files?
Won't later code compute incorrect sizes in that case?

Also, as a nit, stat.st_size is also valid for
SHM and TMO files (this was in the patch I just sent).