Update email in THANKS file

THANKS

diff --git a/THANKS b/THANKS
index 0643df5..61ab3e8 100644
--- a/THANKS
+++ b/THANKS
@@ -57,7 +57,7 @@
 Martin Szulecki <m.szulecki@libimobiledevice.org>
 Michael Balzer
 Michael Beck <mm.beck@gmx.net>
-Michał Janiszewski <janisozaur@gmail.com>
+Michał Janiszewski <janisozaur+libzip@gmail.com>
 Michal Vyskocil <mvyskocil@suse.cz>
 Mikhail Gusarov <dottedmag@dottedmag.net>.
 Miklos Vajna