xe: platforms.linux -> platforms.all

xe is such a trivial package, it should build on every platform that
supports a CC compiler.

pkgs/tools/system/xe/default.nix

@@ -3,7 +3,7 @@
 stdenv.mkDerivation rec {
   name = "xe-${version}";
   version = "0.11";
-  
+
   src = fetchFromGitHub {
     owner = "chneukirchen";
     repo = "xe";
@@ -12,12 +12,12 @@ stdenv.mkDerivation rec {
   };
 
   makeFlags = "PREFIX=$(out)";
-  
+
   meta = with lib; {
     description = "Simple xargs and apply replacement";
     homepage = https://github.com/chneukirchen/xe;
     license = licenses.publicDomain;
-    platforms = platforms.linux;
+    platforms = platforms.all;
     maintainers = with maintainers; [ cstrahan ndowens ];
   };
 }