This PR proposes to fix some already existing (i.e., older) line-length & line-alignment issues and the ones recently included/merged with the PR #7406 (https://github.com/docker/docker/pull/7406). It also proposes to fix a couple minor typography mistakes (i.e., spelling of GitHub and Service Hooks (headers)) This PR does *not* propose any content changes. Docker-DCO-1.1-Signed-off-by: O.S. Tezer <ostezer@gmail.com> (github: ostezer) Upstream-commit: 8b3f2381d0a842bc39c34c39647722fc783d968c Component: engine