Split eula header into two lines of comments

#728
- Found that https://github.com/Yoosk/ServerStarter hard coded expectation that eula property was on third line

start-utils

@@ -145,7 +145,8 @@ requireVar() {
 }
 
 function writeEula() {
-  if ! echo "# Generated via Docker on $(date)
+  if ! echo "# Generated via Docker
+# $(date)
 eula=${EULA,,}
 " >/data/eula.txt; then
     log "ERROR: unable to write eula to /data. Please make sure attached directory is writable by uid=${UID}"