Fix missing dot in stats.py docstring.
Fix missing dot in stats.py docstring.

Patch by: Pawel Solyga
Reviewed by: to-be-reviewed

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging