NEWS: update contributors and date

Author: keszybz

NEWS

@@ -255,12 +255,13 @@ CHANGES WITH 242:
         Klumpp, Michael Biebl, Michael Niewöhner, Michael Olbrich, Michal
         Sekletar, Mike Lothian, Paul Menzel, Piotr Drąg, Riccardo Schirone,
         Robin Elvedi, Roman Kulikov, Ronald Tschalär, Ross Burton, Ryan
-        Gonzalez, Stephane Chazelas, StKob, Susant Sahani, Sylvain Plantefève,
-        Szabolcs Fruhwald, Taro Yamada, Theo Ouzhinski, Thomas Haller, Tobias
-        Jungel, Tom Yan, Tony Asleson, Topi Miettinen, unixsysadmin, Van Laser,
-        Vesa Jääskeläinen, Yu, Li-Yu, Yu Watanabe, Zbigniew Jędrzejewski-Szmek
+        Gonzalez, Sebastian Krzyszkowiak, Stephane Chazelas, StKob, Susant
+        Sahani, Sylvain Plantefève, Szabolcs Fruhwald, Taro Yamada, Theo
+        Ouzhinski, Thomas Haller, Tobias Jungel, Tom Yan, Tony Asleson, Topi
+        Miettinen, unixsysadmin, Van Laser, Vesa Jääskeläinen, Yu, Li-Yu,
+        Yu Watanabe, Zbigniew Jędrzejewski-Szmek
 
-        — Warsaw, 2019-04-08
+        — Warsaw, 2019-04-11
 
 CHANGES WITH 241: