Long options wrapped after the double dash

[volans-]

In the HTML output some long options are wrapped exactly at the double dash, making quite hard to read the table. As an example I got:

-c, --
config

I'm using the Read the Docs theme and I've applied the CSS fix for white-space as suggested.
Have you considered the possibility to replace those specific dashes with non-breaking ones (‑) ?

Versions:

docutils==0.14
Sphinx==1.6.4
sphinx-argparse==0.2.1
sphinx-rtd-theme==0.2.4

[joaoe]

Duplicate of #94