Kloadut/dokku-pg-plugin — pull request #31 by myhro (2014-02-28 16:58:17+00:00)
Title: Fixed list command when there are no containers

Redirecting `ls` stderr to `/dev/null` and then checking if the output is empty prevents the command `postgresql:list` from showing errors like:

ls: cannot access /home/dokku/.postgresql/volume*: No such file or directory