libcacard: fix opposite usage of isspace
libcacard: fix opposite usage of isspace

Signed-off-by: Alon Levy <816c907b754fa7b5d4bb5eb91e0fc01e5510e64d@redhat.com>
Tested-by: Hans de Goede <9fa1be1a5b5729e4c6b404f34c9ce49ff4882fd8@redhat.com>
Signed-off-by: Aurelien Jarno <bceb368e7f2cb351af47298f32034f0587bbe4a6@aurel32.net>

SPICE/libcacard,elmarco/libcacard,elmarco/libcacard,SPICE/libcacard