Adds fallback to structr conf variable.

Author: derkaiserreich

setup_environment.sh

@@ -8,8 +8,9 @@ sed -i "s|STRUCTR_LICENSE|$STRUCTR_LICENSE|g" docker-compose.yml &&
 sed -i "s|STRUCTR_VERSION|$STRUCTR_VERSION|g" docker-compose.yml &&
 sed -i "s|STRUCTR_WEBAPP_PATH|$STRUCTR_WEBAPP_PATH|g" docker-compose.yml &&
 
-if [ -z ${STRUCTR_CONF_FILE:-"./structr.conf"} ]; then
+if [ -z "$STRUCTR_CONF_FILE" ]; then
+    STRUCTR_CONF_FILE="./structr.conf"
     touch ./structr.conf
 fi
 
-sed -i "s|STRUCTR_CONF_FILE|$STRUCTR_CONF_FILE|g" docker-compose.yml
+sed -i "s|STRUCTR_CONF_FILE|$STRUCTR_CONF_FILE|g" docker-compose.yml