datamash: 1.1.1 -> 1.2

See http://lists.gnu.org/archive/html/info-gnu/2017-08/msg00008.html
for release infrmation

pkgs/tools/misc/datamash/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "datamash-${version}";
-  version = "1.1.1";
+  version = "1.2";
 
   src = fetchurl {
     url = "mirror://gnu/datamash/${name}.tar.gz";
-    sha256 = "06w0pc828qsabmrlh7bc2zwc823xzxy89paaf37f6bipsyrij222";
+    sha256 = "15jrv3ly0vgvwwi2qjmhi39n7wrklwifdk961wwfaxyc5jr6zm78";
   };
 
   meta = with stdenv.lib; {