Update menuconfig items with approximate applet sizes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/whois.c b/networking/whois.c
index c9dfcf5..ee5a601 100644
--- a/networking/whois.c
+++ b/networking/whois.c
@@ -11,7 +11,7 @@
  */
 
 //config:config WHOIS
-//config:	bool "whois"
+//config:	bool "whois (6.6 kb)"
 //config:	default y
 //config:	help
 //config:	  whois is a client for the whois directory service