Fixed FTP backups are creating empty zip files hestiacp#515

Changed the ftp backup from active to passive mode in bin/v-backup-user

Author: dekyfin

bin/v-backup-user

@@ -518,7 +518,7 @@ local_backup(){
 
 # Defining ftp command function
 ftpc() {
-    /usr/bin/ftp -n $HOST $PORT <<EOF
+    /usr/bin/ftp -np $HOST $PORT <<EOF
     quote USER $USERNAME
     quote PASS $PASSWORD
     binary