Fix typo.

slapos/recipe/erp5scalabilitytestbed/template/nosqltester_run.in

 #!/bin/sh
 # BEWARE: This file is operated by slapgrid
 # BEWARE: It will be overwritten automatically
-cd %(benchmark_suite_path)s \
+cd %(benchmark_suite_path)s && \
 exec %(scalability_tester_binary)s -m %(host_address)s -a %(tester_address)s \
     -r %(report_path)s -l %(report_path)s --filename-prefix %(filename_prefix)s \
     --repeat %(repeat)s %(erp5_url)s 1 %(benchmark_suites)s