d2536b31 breaks 32 bit

[Rusty Russell]

Reading the commit message, I can't tell why the test was rewritten, but
you broke it :(


Some extracts below:

UNEXPECTED(failure): samba.tests.samba3.PassdbTestCase.test_get_group
REASON: _StringException: Content-Type: text/x-traceback;charset=utf8,language=python
traceback
D5
Traceback (most recent call last):
  File "/home/rusty/devel/cvs/samba/bin/python/samba/tests/samba3.py", line 154, in test_get_group
    self.assertEquals(4294967295, group.gid)
AssertionError: 4294967295L != -1
0
...
UNEXPECTED(failure): samba.tests.samba3.PassdbTestCase.test_getuser
REASON: _StringException: Content-Type: text/x-traceback;charset=utf8,language=python
traceback
F5
Traceback (most recent call last):
  File "/home/rusty/devel/cvs/samba/bin/python/samba/tests/samba3.py", line 127, in test_getuser
    self.assertEquals(9223372036854775807, user.kickoff_time)
AssertionError: 9223372036854775807L != 2147483647
0