Comment by yjftsjthsd-h

Huh, neat. So I picked that habit up from writing Dockerfiles, which does let you do

    RUN foo && \
        bar && \
        :

but not

    RUN foo &&
        bar &&
        :

(I just tested it), but more recently you can just write

    RUN <<EOF
    foo
    bar
    EOF

so with the caveat of needing to `set -e` the whole thing might be a moot point now:)