common: let StdoutLogger skip header, if desired
When StdoutLogger is used in combination with systemd, then header becomes redundant.
Signed-off-by: Tigran Mkrtchyan tigran.mkrtchyan@desy.de
When StdoutLogger is used in combination with systemd, then header becomes redundant.
Signed-off-by: Tigran Mkrtchyan tigran.mkrtchyan@desy.de