treewide: editorconfig fixes

- remove trailing whitespace
- use spaces for indentation

pkgs/tools/text/cconv/default.nix

@@ -3,14 +3,14 @@ let version = "0.6.3"; in
   stdenv.mkDerivation {
   pname = "cconv";
   inherit version;
-  
+
   src = fetchurl {
     url = "https://github.com/xiaoyjy/cconv/archive/v${version}.tar.gz";
     sha256 = "82f46a94829f5a8157d6f686e302ff5710108931973e133d6e19593061b81d84";
   };
 
   nativeBuildInputs = [ autoreconfHook ];
-  
+
   meta = with lib; {
     description = "A iconv based simplified-traditional chinese conversion tool";
     homepage = "https://github.com/xiaoyjy/cconv";

pkgs/tools/text/enca/default.nix

@@ -23,6 +23,6 @@ stdenv.mkDerivation rec {
     '';
 
     license = licenses.gpl2;
-   
+
   };
 }