revert changes to ARG in dockerfile

Dockerfile

@@ -9,9 +9,9 @@ LABEL org.label-schema.name="clspigot-docker" \
 # Execute all the following instructions in the container as user "root"
 USER root
 # User and group used to run the PaperMC server (build time argument, defaulting to "papermc")
-ARG papermc_user=papermc \
-    papermc_group=papermc \
-    vcsref=""
+ARG papermc_user=papermc
+ARG papermc_group=papermc
+ARG vcsref=""
 
 LABEL org.label-schema.vcs-ref=${vcsref}
 

backup.sh

@@ -10,10 +10,10 @@ dateformat=$(date +%F_%H)UTC$ext
     else
         mkdir -p $backupdir
     fi
-	screen -r mc -p 0 -X stuff "auto-save off" #Sends an input to screen-session conatining the papermc-server to disable world saving from minecraft
+    screen -r mc -p 0 -X stuff "auto-save off" #Sends an input to screen-session conatining the papermc-server to disable world saving from minecraft
     tar -czvf $backupdir$dateformat --exclude="plugins/dynmap/web/tiles" --exclude="cache/" --exclude="*.gz" --exclude="spigo*.jar" --exclude="paper*.jar" * #creates a compressed tarball of the minecraft folder
-	screen -r mc -p 0 -X stuff "auto-save on" #enables it again
-	chmod +rw $backupdir$dateformat
+    screen -r mc -p 0 -X stuff "auto-save on" #enables it again
+    chmod +rw $backupdir$dateformat
     echo "Backup complete."
 
 exit 0
\ No newline at end of file