Comment by yjftsjthsd-h

> The RUN parser currently doesn't support grouping or semicolons in commands

But then example show that it does support `&&`? Why the difference? I pretty much always write

  RUN foo && \
      bar && \
      :

but it seems syntactically identical to the also valid

  RUN set -e && \
      foo ; \
      bar ; \
      :