Not able to create multiple DBs at docker run

Hi,
I am trying to create multiple databases using -e option:

`docker run --name db -d \
-e INFLUXDB_DB=ping_rtt -e INFLUXDB_DB=tcp_rtt \
-e INFLUXDB_ADMIN_USER=root -e INFLUXDB_ADMIN_PASSWORD=supersecretpassword \
-v $PWD/influxdb/influxdb.conf:/etc/influxdb/influxdb.conf:ro \
-v $PWD/influxdb:/var/lib/influxdb \
influxdb`

However, with this command, just INFLUXDB_DB=tcp_rtt is executed. Not sure if is an issue or not but your help will be greatly appreciated.

Start by reproducing the supplied docker run command and inspect how the image processes repeated INFLUXDB_DB environment variables during database initialization. Done means establishing whether multiple databases are supported through this option and documenting or correcting the observed behavior, with a reproducible verification.

Written by the indexing model from the issue text.