vk/util: Annotate anv_finishme() as printflike

src/vulkan/private.h

@@ -88,7 +88,8 @@ vk_error(VkResult error)
    return error;
 }
 
-void __anv_finishme(const char *file, int line, const char *format, ...);
+void __anv_finishme(const char *file, int line, const char *format, ...)
+   anv_printflike(3, 4);
 
 /**
  * Print a FINISHME message, including its source location.

src/vulkan/util.c

@@ -30,7 +30,7 @@
 
 #include "private.h"
 
-void
+void anv_printflike(3, 4)
 __anv_finishme(const char *file, int line, const char *format, ...)
 {
    va_list ap;