do not use `sudo` if user is already `redmine` in `exec_as_redmine`
do not use `sudo` if user is already `redmine` in `exec_as_redmine`

sameersbn/docker-redmine,otsuka512/docker-redmine,sameersbn/docker-redmine,sameersbn/docker-redmine,otsuka512/docker-redmine,otsuka512/docker-redmine