correct LENGTH()

std.c

@@ -13,7 +13,7 @@
 #include <string.h>
 #include <unistd.h>
 
-#define LENGTH(x)	(sizeof (x) / sizeof (x)[0])
+#define LENGTH(x)	(sizeof(x) / sizeof((x)[0]))
 #define MAX(a,b)	(((a) > (b)) ? (a) : (b))
 #define MIN(a,b)	(((a) < (b)) ? (a) : (b))