CBQE-0: corrected syntax error in run_job_linux.sh

Change-Id: I95b23736d3ecacbe229ca26c96660b3f251d639b
Reviewed-on: http://review.couchbase.org/42071
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>