Update menuconfig items with approximate applet sizes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/tac.c b/coreutils/tac.c
index ca5617c..1f5b34a 100644
--- a/coreutils/tac.c
+++ b/coreutils/tac.c
@@ -13,7 +13,7 @@
  * http://www.uclibc.org/lists/busybox/2003-July/008813.html
  */
 //config:config TAC
-//config:	bool "tac"
+//config:	bool "tac (4.1 kb)"
 //config:	default y
 //config:	help
 //config:	  tac is used to concatenate and print files in reverse.