Fix and enable gating on H401

H401  docstring should not start with a space

Change-Id: Iaf63af75b0534cae1bac3c931ef5f51f1644aec9
Fix up trivial H103 license check mismatches

Adjust a few trivial typos in the license headers
in the source files.

Change-Id: I907df4ece8e589e930fd788e3f33201537938572
Merge "Fix up trivial H103 license check mismatches"