Merge branch 'ab/test-must-be-empty-for-master'

Test updates. * ab/test-must-be-empty-for-master: tests: make use of the test_must_be_empty function

Junio C Hamano committed Aug 20, 2018 at 11:33 UTC 14677d25ab50efcf57621ae69d6ba858a5f86165

No changes.