that it doesn't like that… remove superficial quoting to fix apt-key
# implodes if there isn't one available
SECRETKEYRING="$(mktemp)"
trap "rm -f '${SECRETKEYRING}'" 0 HUP INT QUIT ILL ABRT FPE SEGV PIPE TERM
-GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring '${SECRETKEYRING}'"
+GPG_CMD="gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring ${SECRETKEYRING}"
if [ "$(id -u)" -eq 0 ]; then
# we could use a tmpfile here too, but creation of this tends to be time-consuming