Fix tsa COSMO_IGNORE_SLURM_STATUS

Replace exit 0 with return
The exit 0 caused the test.sh script to exit, such that
testsuite.out check was not done in Jenkins plan

Author: lxavier

slurmTools.sh

@@ -91,7 +91,7 @@ function launch_job {
   # For the time being we ignore the slurm status (a check is done on the output)
   if [ -n "${COSMO_IGNORE_SLURM_STATUS}" ]; then
       echo "!! Warning: slurm status is not checked if COSMO_IGNORE_SLURM_STATUS is set"
-      exit 0
+      return
   fi
 
   while [ $sacct_wait -lt $sacct_maxwait ] ; do