fix docstring style issues

`cros lint` flags a bunch of issues with these docstrings.
Clean up the style to pass all the checks.

TEST=`cros lint` on these no longer complains about docstrings

Change-Id: I7caf0275ce1441bb4031f7d8e9e0ac96bfdf9b05
Tested-by: Mike Frysinger <>
Commit-Ready: Mike Frysinger <>
Legacy-Commit-Queue: Commit Bot <>
Reviewed-by: Duncan Laurie <>
1 file changed