Extra newline showing in the docs in the auto-completion window

[TheResplandor]

Just a minor unwanted behavior i spotted:
In the auto-completion window, where it shows the docs of the function it suggests to complete, the function's signature and its doc are both shown with an extra newline. Its useless and takes up more space from the window.

with "ide-python" 's completion:

and just for reference, with "autocomplete-python" 's completion:

Personalty I think the latter is the desired behavior.
I hope you agree.

[lgeiger]

This will hopefully be fixed by the language server in palantir/python-language-server#348

Closing in favor of #95