fixed cookstyle test failure
fixed cookstyle test failure

Offenses:
test/integration/module24/rhel_spec.rb:66:1: C: 3 trailing blank lines detected.
63 files inspected, 1 offense detected

karmix/httpd,chef-cookbooks/httpd,karmix/httpd,chef-cookbooks/httpd,karmix/httpd,karmix/httpd,chef-cookbooks/httpd,chef-cookbooks/httpd