Update THANKS.

THANKS

diff --git a/THANKS b/THANKS
index d93f9b0..7b36e72 100644
--- a/THANKS
+++ b/THANKS
@@ -45,6 +45,7 @@
   - Cary Lewis
   - Wim Lewis
   - Lorenzo De Liso
+  - Bela Lubkin
   - Gregory Margo
   - Jim Meyering
   - Arkadiusz Miskiewicz