Update menuconfig items with approximate applet sizes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/uname.c b/coreutils/uname.c
index 1f19c93..18c6d8e 100644
--- a/coreutils/uname.c
+++ b/coreutils/uname.c
@@ -43,7 +43,7 @@
  *  Fix handling of -a to not print "unknown", add -o and -i support.
  */
 //config:config UNAME
-//config:	bool "uname"
+//config:	bool "uname (3.7 kb)"
 //config:	default y
 //config:	help
 //config:	  uname is used to print system information.