include/ and checkpatch: prefer __scanf to __attribute__((format(scanf,...)

It's equivalent to __printf, so prefer __scanf.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index d801acb..f2085b5 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -328,10 +328,10 @@
 char *kasprintf(gfp_t gfp, const char *fmt, ...);
 extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
 
-extern int sscanf(const char *, const char *, ...)
-	__attribute__ ((format (scanf, 2, 3)));
-extern int vsscanf(const char *, const char *, va_list)
-	__attribute__ ((format (scanf, 2, 0)));
+extern __scanf(2, 3)
+int sscanf(const char *, const char *, ...);
+extern __scanf(2, 0)
+int vsscanf(const char *, const char *, va_list);
 
 extern int get_option(char **str, int *pint);
 extern char *get_options(const char *str, int nints, int *ints);