跟随链接复制时的临时目录问题

[xdsnet]

mc version 4.8.13
对于包含有很多软链接文件的目录，采用跟随链接的复制模式复制到其他地方（比如远程服务器下），会中/tmp 目录的mc- 子目录下生成很多实体文件，而且不会很快清除，这极大的占用空间，如果/tmp 没有提供足够复制所有文件的空间，将在空间满了后停止复制。而这些临时的实体文件其实没有多大作用，完全没有必要存在，即使为了复制方便而存在了，也应该在单个文件复制完毕后及时清除掉以节约空间啊。

[xdsnet]

In English
Copying the directories with many symbolic link files to other spaces (such as remote server) by following a link will generate a number of entity files under /tmp/mc-. These entity files will take up much space, for they won’t be erased automatically at once. If /tmp doesn’t have enough space to copy all these files, the copying will be stopped as soon as the space is full. These entity files don’t have any function, they have no need to exist. Even though these entity files are useful for copying convenience, they should be erased after single file was copied.