# apt-key before 0.9.10 could leave empty keyrings around
find /etc/apt/trusted.gpg.d/ -name '*.gpg' | while read keyring; do
if ! test -s "$keyring"; then
# apt-key before 0.9.10 could leave empty keyrings around
find /etc/apt/trusted.gpg.d/ -name '*.gpg' | while read keyring; do
if ! test -s "$keyring"; then