Coding style

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

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

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

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

Signed-off-by: Michal Čihař <michal@cihar.com>
Do not quote printable regular chars

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