Add plex

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/docker/transmission-protonvpn/entrypoint.sh

@@ -68,7 +68,7 @@ transmission-daemon -f \
   --bind-address-ipv4 "$BIND_IP" \
   --bind-address-ipv6 "::1" \
   "$@" > "$PIPE" 2>&1 &
-PID=$!
+PID="$!"
 
 CAT_PIPE=$(mktemp -u)
 GREP_PIPE=$(mktemp -u)
@@ -108,7 +108,7 @@ rpc_url="http://127.0.0.1:9091${rpc_path}rpc/"
     sleep 45
   done
 ) &
-NATPMP_PID=$!
+NATPMP_PID="$!"
 
 # shellcheck disable=SC2317
 cleanup() {