Fix #580 again

Author: A S Lewis

tartube/mainapp.py

@@ -15319,8 +15319,11 @@ def move_videos_continue(self, media_list):
             try:
                 fh = open(archive_path, 'a')
 
+                if os.path.getsize(archive_path) == 0 and id_list:
+                    fh.write('youtube ' + id_list.pop(0))
+
                 for id in id_list:
-                    fh.write('youtube ' + id)
+                    fh.write('\nyoutube ' + id)
 
                 fh.close()