Fix doctest failure in bika.lims.jsonapi.update
Fix doctest failure in bika.lims.jsonapi.update

Failure in test update (bika.lims.jsonapi.update.Update)
Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 327, in run
    testMethod()
  File "/usr/lib/python2.7/doctest.py", line 2201, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for bika.lims.jsonapi.update.Update.update
  File "/home/travis/build/bikalabs/bika.lims/bika/lims/jsonapi/update.py", line 23, in update

rockfruit/bika.lims,rockfruit/bika.lims