Fail to set the value in multiple lines

Fail to set the value in multiple lines

refer to the log of Jenkins:
https://build.opnfv.org/ci/view/pharos/job/
validate-pdf-jinja2-templates-master/326/console

/home/jenkins-ci/opnfv/slave_root/workspace/
validate-pdf-jinja2-templates-master/config/utils/check-jinja2.sh:
line 54: -i ./config/installers/apex: No such file or directory

[GENERATE] [OK]
[YAMLLINT] [OK] yamllint -s ./config/installers/apex/pod_config.yaml

Change-Id: I13c220e7fba5355124ae2b41e7399140c5d92523
Signed-off-by: Julien <zhang.jun3g@zte.com.cn>