Update test expectation.

test: 902
Change-Id: I0d9082a34a66c5f2aadec90eda0c5c2a0feef2e4
diff --git a/test/902-hello-transformation/expected.txt b/test/902-hello-transformation/expected.txt
index e86e814..a826f93 100644
--- a/test/902-hello-transformation/expected.txt
+++ b/test/902-hello-transformation/expected.txt
@@ -1,3 +1,3 @@
-Hello
+hello
 modifying class 'Transform'
 Goodbye