[dt-test] automated tests failed

[DITrack Testbot]

=== branches/null-backend, r1722 by vss: FAIL (1 tests failed)
 * test failed: dt-createdb.tc (tail of the error log follows)
    DTTEST: executing 'rm -rf /X/testbox/ditrack/branches-null-backend.r1722/tests/dt-createdb.tc/work'
    DTTEST: executing 'svnadmin create /X/testbox/ditrack/branches-null-backend.r1722/tests/dt-createdb.tc/work/repo'
    DTTEST: executing '/X/testbox/ditrack/branches-null-backend.r1722/tests/../dt-createdb file:///X/testbox/ditrack/branches-null-backend.r1722/tests/dt-createdb.tc/work/repo issues /X/testbox/ditrack/branches-null-backend.r1722/tests/dt-createdb.tc/work/db'
    Traceback (most recent call last):
      File "./test.py", line 38, in ?
        tc.system("%s %s issues %s" %
      File "/X/testbox/ditrack/branches-null-backend.r1722/tests/dttest/dttest.py", line 337, in system
        assert(rc == 0)
    AssertionError