Hi! Thanks for contributing to Nextflow. When submitting a Pull Request, please sign-off the DCO [1] to certify that you are the author of the contribution and you adhere to Nextflow's open source license [2] by adding a `Signed-off-by` line to the contribution commit message. See [3] for more details. 1. https://developercertificate.org/ 2. https://github.com/nextflow-io/nextflow/blob/master/COPYING 3. https://github.com/apps/dco