Re: [rhinstaller/anaconda/pulls/248 master] Fix the UnusuableConfigurationError dialog (#1246915)

[dashea]

> @@ -148,7 +148,7 @@ def _storageResetHandler(self, exn):
>                       "can access by pressing ctrl-alt-f1 and then ctrl-b 2."
>                       "\n\nOnce you have resolved the issue you can retry the "
>                       "storage scan. If you do not fix it you will have to exit "
>                 "the installer.") % {"errortxt": escape_markup(exn.message)})
>                 "the installer.") % {"errortxt": escape_markup(str(exn))})

I think the ``str()`` call is not necessary in this case, but it can hardly hurt so feel free to keep it in place.