units: 2.12 -> 2.13

pkgs/tools/misc/units/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "units-${version}";
-  version = "2.12";
+  version = "2.13";
 
   src = fetchurl {
     url = "mirror://gnu/units/${name}.tar.gz";
-    sha256 = "1jxvjknz2jhq773jrwx9gc1df3gfy73yqmkjkygqxzpi318yls3q";
+    sha256 = "1awhjw9zjlfb8s5g3yyx63f7ddfcr1sanlbxpqifmrgq24ql198b";
   };
 
   buildInputs = [ readline ];
···
     description = "Unit conversion tool";
     homepage = https://www.gnu.org/software/units/;
     license = [ licenses.gpl3Plus ];
-    platforms = stdenv.lib.platforms.all;
+    platforms = platforms.all;
+    maintainers = [ maintainers.vrthra ];
   };
 }