kbd: 2.7.1 -> 2.8.0 (#412833)

pkgs/by-name/kb/kbd/package.nix

···
 
 stdenv.mkDerivation rec {
   pname = "kbd";
-  version = "2.7.1";
+  version = "2.8.0";
 
   src = fetchurl {
     url = "mirror://kernel/linux/utils/kbd/${pname}-${version}.tar.xz";
-    sha256 = "sha256-8WfYmdkrVszxL29JNVFz+ThwqV8V2K7r9f3NKKYhrKg=";
+    hash = "sha256-AfWAbafR009ZS3sqauGrIyFTRM8QZOjtzTqQ/vl3ahE=";
   };
 
   # vlock is moved into its own output, since it depends on pam. This
···
       src/vlock/Makefile.in \
       src/vlock/Makefile.am
   '';
+
+  enableParallelBuilding = true;
 
   postInstall = ''
     for i in $out/bin/unicode_{start,stop}; do