el-get and vimpulse

[Marc Weber]

We all know the (lovely?) feature of Vim to treat no files ever as
binary by default.

Now el-get is using url-retrieve to fetch tar files and using write-file
to write it.

Now either vimpulse (or Viper?) is appending a trailing \n which makes
tar complain about trailing garbage exiting with code 2.

How would you recommend to solve this issue?

I didn't start reading much vimpulse / Viper code yet.
Maybe there is a simple option (?)

Marc Weber