Initialize all members

Coverity report - CID 47518

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>
Restore format flags

Coverity fix - CID 47517

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>
Allow AM_PROG_AR if not available

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>