ref: 2a83ebb7dc6f8f719e2018df7a3a6b090e6541c9 dir: /testdir/test12.ok/
first line Xtest1.swp under Xtest1.swp under under Xtest1.swp under Xtest1.swp Xtest3 under Xtest3 Xtest3.swp under Xtest3.swp