util: Use __attribute__

Replace the rare __attribute by the more common __attribute__.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/include/util.h b/include/util.h
index 5a6b5ab..1433b87 100644
--- a/include/util.h
+++ b/include/util.h
@@ -40,7 +40,7 @@
 extern void Error(const char *fmt, ...)
     __attribute__ ((format (printf, 1, 2)));
 extern void Fatal(const char *fmt, ...)
-    __attribute__ ((noreturn)) __attribute ((format (printf, 1, 2)));
+    __attribute__ ((noreturn)) __attribute__ ((format (printf, 1, 2)));
 extern void Debug(const char *fmt, ...)
     __attribute__ ((format (printf, 1, 2)));