unicode: s/FEATURE_ASSUME_UNICODE/UNICODE_SUPPORT, add UNICODE_USING_LOCALE

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/scripts/randomtest b/scripts/randomtest
index 2a30cb6..6b7db92 100755
--- a/scripts/randomtest
+++ b/scripts/randomtest
@@ -50,7 +50,7 @@
 | grep -v ^CONFIG_BUILD_LIBBUSYBOX= \
 | grep -v ^CONFIG_PAM= \
 | grep -v ^CONFIG_TASKSET= \
-| grep -v ^CONFIG_FEATURE_ASSUME_UNICODE= \
+| grep -v ^CONFIG_UNICODE_SUPPORT= \
 | grep -v ^CONFIG_PIE= \
 | grep -v CONFIG_STATIC \
 | grep -v CONFIG_CROSS_COMPILER_PREFIX \