dotfiles: fix some scripts

.config/dotfiles/scripts/apt-add-keyring

@@ -190,7 +190,7 @@ verify_apt_uri() {
 }
 
 verify_suite() {
-	if printf '%s' "$1" | grep -Eq '^[[:alnum:]][[:alnum:]-_]*[[:alnum:]]$' ; then
+	if printf '%s' "$1" | grep -Eq '^[[:alnum:]][[:alnum:]_-]*[[:alnum:]]$' ; then
 		return 0
 	fi
 	env printf "%q: error: unsupported suite format: %q\\n" "${me}" "$1" >&2

.config/dotfiles/scripts/gpg-batch

@@ -22,6 +22,8 @@ esac
 
 check-bin-pkg gpg dirmngr gpgconf
 
+exec 0</dev/null
+
 case "${act}" in
 1 | start )
 	[ -n "${GNUPGHOME}" ] || usage 1