Fuel bootstrap building is broken due to absence of oslo_log module

Fuel bootstrap building is broken due to absence of oslo_log module.
Attempt to build the Ubuntu bootstrap fails with the message
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[root@fuel ~]# fuel-bootstrap build
Traceback (most recent call last):
 File "/usr/bin/fuel-bootstrap", line 10, in <module>
   sys.exit(main())
 File "/usr/lib/python2.7/site-packages/fuel_bootstrap/main.py", line 57, in main
   return FuelBootstrap().run(argv)
 File "/usr/lib/python2.7/site-packages/cliff/app.py", line 255, in run
   result = self.run_subcommand(remainder)
 File "/usr/lib/python2.7/site-packages/cliff/app.py", line 337, in run_subcommand
   subcommand = self.command_manager.find_command(argv)
 File "/usr/lib/python2.7/site-packages/cliff/commandmanager.py", line 75, in find_command
   cmd_factory = cmd_ep.resolve()
 File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2361, in resolve
   module = __import__(self.module_name, fromlist=['__name__'], level=0)
 File "/usr/lib/python2.7/site-packages/fuel_bootstrap/commands/build.py", line 19, in <module>
   from fuel_bootstrap.utils import bootstrap_image as bs_image
 File "/usr/lib/python2.7/site-packages/fuel_bootstrap/utils/bootstrap_image.py", line 25, in <module>
   from fuel_agent import manager
 File "/usr/lib/python2.7/site-packages/fuel_agent/manager.py", line 25, in <module>
   from fuel_agent.utils import artifact as au
 File "/usr/lib/python2.7/site-packages/fuel_agent/utils/artifact.py", line 24, in <module>
   from fuel_agent.utils import utils
 File "/usr/lib/python2.7/site-packages/fuel_agent/utils/utils.py", line 38, in <module>
   from oslo_log import log as logging
ImportError: No module named oslo_log
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