Arvados

Currently, as verified by tests, arvados-git-httpd returns 500 when the servers are all working perfectly but the client used an invalid token.

Existing test case:

func (s *IntegrationSuite) TestInvalidToken(c *check.C) {
    for _, repo := range []string{"active/foo.git", "active/foo/.git"} {
        err := s.runGit(c, "no-such-token-in-the-system", "fetch", repo)
        c.Assert(err, check.ErrorMatches, `.* 500 while accessing.*`)
    }
}

This response should have been 401, not 500.