[PATCH for-4.15 2/2] tools/xenstore: Check the format printf for xprintf() and barf{,_perror}()

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Julien Grall writes ("[PATCH for-4.15 2/2] tools/xenstore: Check the format 
printf for xprintf() and barf{,_perror}()"):
> From: Julien Grall <jgrall@xxxxxxxxxx>
> 
> Allow GCC to analyze the format printf for xprintf() and
> barf{,_perror}().
> 
> Take the opportunity to define __noreturn to make the prototype for
> barf{,_perror})() easier to read.

Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>