check customer-user-realname exists (via customer backend) if <OTRS_CUSTOMER_REALNAME> is used in templates (notifications, std responses)
check customer-user-realname exists (via customer backend) if <OTRS_CUSTOMER_REALNAME> is used in templates (notifications, std responses)

djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test