commands: fix registrar check 'util' in hgsubversion is a different type from hgutil, which is the one from core hg. This was hidden by the fallback logic, but I'm not sure why it didn't cause errors in the tests. Maybe I ran the original tests against an older hg. This time I've ensured the tests pass against the latest version of hg.

import test_util

import unittest

class TestFetchBinaryFiles(test_util.TestBase):
    stupid_mode_tests = True

    def test_binaryfiles(self):
        repo = self._load_fixture_and_fetch('binaryfiles.svndump')
        self.assertEqual('cce7fe400d8d', str(repo['tip']))