float conversion ValueError on localized values

[Yves-Gwenael Bourhis]

There is a missing .replace(',', '.') in cinder/volume/drivers/lvm.py line 690

Indeed cinder volume fails with the following backtrace:

2013-09-05 15:31:21.535 ERROR cinder.service [req-e0747443-17a0-4cb5-9d65-43a8b90ee917 None None] Unhandled exception
2013-09-05 15:31:21.535 TRACE cinder.service Traceback (most recent call last):
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/service.py", line 228, in _start_child
2013-09-05 15:31:21.535 TRACE cinder.service self._child_process(wrap.server)
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/service.py", line 205, in _child_process
2013-09-05 15:31:21.535 TRACE cinder.service launcher.run_server(server)
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/service.py", line 96, in run_server
2013-09-05 15:31:21.535 TRACE cinder.service server.start()
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/service.py", line 385, in start
2013-09-05 15:31:21.535 TRACE cinder.service self.manager.init_host()
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/volume/manager.py", line 192, in init_host
2013-09-05 15:31:21.535 TRACE cinder.service self.publish_service_capabilities(ctxt)
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/volume/manager.py", line 756, in publish_service_capabilities
2013-09-05 15:31:21.535 TRACE cinder.service self._report_driver_status(context)
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/volume/manager.py", line 748, in _report_driver_status
2013-09-05 15:31:21.535 TRACE cinder.service volume_stats = self.driver.get_volume_stats(refresh=True)
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/volume/drivers/lvm.py", line 669, in get_volume_stats
2013-09-05 15:31:21.535 TRACE cinder.service self._update_volume_stats()
2013-09-05 15:31:21.535 TRACE cinder.service File "/opt/stack/cinder/cinder/volume/drivers/lvm.py", line 690, in _update_volume_stats
2013-09-05 15:31:21.535 TRACE cinder.service data['free_capacity_gb'] = float(self.vg.vg_free_space)
2013-09-05 15:31:21.535 TRACE cinder.service ValueError: invalid literal for float(): 10,01