kconfig/[mn]conf: make it explicit in the search box that a regexp is possible

Reported-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 6ee4aae..18d3dc9 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -401,7 +401,7 @@
 	struct subtitle_part stpart;
 
 	title = str_new();
-	str_printf( &title, _("Enter %s (sub)string to search for "
+	str_printf( &title, _("Enter %s (sub)string or regexp to search for "
 			      "(with or without \"%s\")"), CONFIG_, CONFIG_);
 
 again: