Disabled log4j config when TYPE=SPIGOT

Helps #482

start-minecraftFinalSetup

@@ -27,6 +27,7 @@ if [ -n "$ICON" -a ! -e server-icon.png ]; then
   fi
 fi
 
+if [ ${TYPE} != "SPIGOT" ]; then
 # Set up log configuration
 LOGFILE="/data/log4j2.xml"
 if [ ! -e "$LOGFILE" ]; then
@@ -36,6 +37,7 @@ else
   log "log4j2.xml already created, skipping"
 fi
 JVM_OPTS="-Dlog4j.configurationFile=/data/log4j2.xml ${JVM_OPTS}"
+fi
 
 # Make sure files exist and are valid JSON (for pre-1.12 to 1.12 upgrades)
 log "Checking for JSON files."