Cannot use space in username about gvmd

[cfi-gb]

If not, I would suggest to at least include a more descriptive error message ( e.g. "Username cannot contain whitespace" or "Unsupported character used in field username").

Seems this is now done via #59 from April 2018 and will be shipped with the next openvas-manager 7.0 release.

Also quoting @bjoernricks from #312 (comment):

That's not an easy task as it sounds first. Due to local policies and different operating systems some usernames might be valid on one system but not on the other. There is no username rule that fits for all systems.

We are aware of these problems and are thinking about something like "test these credentials to login into this system" functionality. But this is in an early stage and will take some time.

[bjoernricks]

Should be re-tested with current version. If it is still valid please re-open.