Fix Travis script error

.travis.yml

@@ -70,7 +70,7 @@ before_install:
 - openssl aes-256-cbc -K $encrypted_bf83b4ab4874_key -iv $encrypted_bf83b4ab4874_iv
   -in psiphon/controller_test.config.enc -out psiphon/controller_test.config -d
 - openssl aes-256-cbc -K $encrypted_560fd0d04977_key -iv $encrypted_560fd0d04977_iv 
-  -in feedback_test.config.enc -out feedback_test.config -d
+  -in psiphon/feedback_test.config.enc -out psiphon/feedback_test.config -d
 notifications:
   slack:
     rooms: