[test-infra] Fix crash creating manifest when working directory doesn't have any changes (#1301)

• From: jgraham <web-platform-tests-notifications@w3.org>
• Date: Wed, 22 Oct 2014 16:27:44 GMT
• To: public-web-platform-tests-notifications@w3.org
• Message-Id: <<web-platform-tests_issue_1301@w3.org>>

View on GitHub: https://github.com/w3c/web-platform-tests/pull/1301

Received on Wednesday, 22 October 2014 16:27:51 UTC