Newline missing in generated batch script

Bug description / feature request:

When running struphy with -b but not with likwid. The batch_script.sh is incorrectly generated.

• Newline missing between "# Run command added by Struphy" and "srun ..."
• The srun command is now run with srun -n str(mpi) which means struphy will be run with the number of cores that are speciefied by --mpi X and NOT by the number of cores that are specified in the batch script. This is not how it was set up previously.
  • Which method is preferred?

Expected behavior:

There should be a newline...

Proposed solution:

I will add an \n in console/run.py