kconfig/[mn]conf: shorten title in search-box

No need to repeat the 'CONFIG_' string in the title,
once is explicit enough.

Reported-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jean Delvare <jdelvare@suse.de>
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
index 7975d8d..4fbecd2 100644
--- a/scripts/kconfig/nconf.c
+++ b/scripts/kconfig/nconf.c
@@ -695,8 +695,8 @@
 	int dres;
 
 	title = str_new();
-	str_printf( &title, _("Enter %s (sub)string or regexp to search for "
-			      "(with or without \"%s\")"), CONFIG_, CONFIG_);
+	str_printf( &title, _("Enter (sub)string or regexp to search for "
+			      "(with or without \"%s\")"), CONFIG_);
 
 again:
 	dres = dialog_inputbox(main_window,