hrochobot.service: Set HROCHOBOT_ETC

cobuild/010-service.d/hrochobot.service

@@ -4,9 +4,10 @@ After=network.target
 
 [Service]
 Type=exec
-ExecStartPre=mkdir -p /data/etc
+ExecStartPre=mkdir -p /data/hrochobot
 ExecStart=/usr/local/bin/hrochobot
-Environment=HROCHOBOT_DATA=/data/etc
+Environment=HROCHOBOT_DATA=/data/hrochobot
+Environment=HROCHOBOT_ETC=/data/hrochobot
 Environment=HROCHOBOT_LOG=/data/log
 
 [Install]