This paramterer is a string

Signed-off-by: Michal Čihař <michal@cihar.com>
Adjust docs to match current code

Signed-off-by: Michal Čihař <michal@cihar.com>
This function does not return anything

Signed-off-by: Michal Čihař <michal@cihar.com>
The return value here is inconsistent and not used

Signed-off-by: Michal Čihař <michal@cihar.com>