Add kwargs argument to HostingService get_file and get_file_exists
Review Request #7726 — Created Oct. 23, 2015 and submitted
Omitting the kwargs argument causes us to drop at least the base_commit_id
argument to the SCMTool get_file and get_file_exists implementations and
could cause us to drop other arguments as well.
The unit tests were run
Tool: Pyflakes Processed Files: reviewboard/hostingsvcs/service.py Tool: PEP8 Style Checker Processed Files: reviewboard/hostingsvcs/service.py