test(Bash microkernel): Add newline in to commands expecting output
test(Bash microkernel): Add newline in to commands expecting output

Aims to fix broken tests on MacOS

stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila,stencila/stencila