message: correction to expiry_os_test to match code change to make expiry_minutes==0 equivalent to disable
diff: @@ -364,9 +364,9 @@ TEST(ExpiryTester, CompactionFinalizeCallback1)
  module.expiry_minutes=0;
  ver.SetFileList(level, files);
  flag=module.CompactionFinalizeCallback(true, ver, level, NULL);
  - ASSERT_EQ(flag, true);
  + ASSERT_EQ(flag, false);
  flag=module.CompactionFinalizeCallback(false, ver, level, NULL);
  - ASSERT_EQ(flag, true);
  + ASSERT_EQ(flag, false);
  // remove explicit
  files.pop_back();
  