check-tar: read from stdin in binary mode
check-tar: read from stdin in binary mode

Python's tarfile expects binary input, so feed it using sys.stdin.buffer
instead of sys.stdin.

Signed-off-by: Apollon Oikonomopoulos <ed81ed0a45ccd5c8869bda52e38353a6299ee39e@dmesg.gr>

mbakke/ganeti,mbakke/ganeti,ganeti/ganeti,ganeti/ganeti,mbakke/ganeti,ganeti/ganeti