Fix recent changes in docker.sh script to use proper env variable.
Fix recent changes in docker.sh script to use proper env variable.


AzuraCast/AzuraCast,AzuraCast/AzuraCast,SlvrEagle23/AzuraCast,AzuraCast/AzuraCast,SlvrEagle23/AzuraCast,SlvrEagle23/AzuraCast,SlvrEagle23/AzuraCast,AzuraCast/AzuraCast,SlvrEagle23/AzuraCast