`rose_dry_run_mode`

Hi

I’m looking at a workflow and I’ve found an example of someone setting ROSE_DRY_RUN_MODE. The variable is not currently documented and only appears in metomi/rose/etc/lib/bash/rose_log, itself only used in metomi/rose/scripts/rose-mpi-launch. I don’t think that ROSE_DRY_RUN_MODE does anything outside that context.

Is that correct?
If so, would you like me to make a documentation PR?

[Write up of in person discussion with Oliver on this matter]

Rose dry run mode works if rose_log is sourced somewhere in the environment with the correct path.