Update menuconfig items with approximate applet sizes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

findutils/find.c

@@ -54,7 +54,7 @@
  */
 
 //config:config FIND
-//config:	bool "find"
+//config:	bool "find (14 kb)"
 //config:	default y
 //config:	help
 //config:	  find is used to search your system to find specified files.

findutils/grep.c

@@ -19,19 +19,19 @@
  */
 
 //config:config GREP
-//config:	bool "grep"
+//config:	bool "grep (8.5 kb)"
 //config:	default y
 //config:	help
 //config:	  grep is used to search files for a specified pattern.
 //config:
 //config:config EGREP
-//config:	bool "egrep"
+//config:	bool "egrep (7.6 kb)"
 //config:	default y
 //config:	help
 //config:	  Alias to "grep -E"
 //config:
 //config:config FGREP
-//config:	bool "fgrep"
+//config:	bool "fgrep (7.6 kb)"
 //config:	default y
 //config:	help
 //config:	  Alias to "grep -F"

findutils/xargs.c

@@ -16,7 +16,7 @@
  */
 
 //config:config XARGS
-//config:	bool "xargs"
+//config:	bool "xargs (6.7 kb)"
 //config:	default y
 //config:	help
 //config:	  xargs is used to execute a specified command for