Github user apivovarov commented on the issue:
https://github.com/apache/flink/pull/2539
it's not even convenient to work with files started with `-`, e.g.
```$ vi -44.txt
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Aug 1 2016 19:37:21)
Unknown option argument: "-44.txt"
More info with: "vim -h"```
```$ rm -rf "-4.txt"
rm: illegal option -- 4
usage: rm [-f | -i] [-dPRrvW] file ...
unlink file```
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