treewide: remove trailing whitespace

pkgs/tools/filesystems/cpcfs/default.nix

@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
 
   pname = "cpcfs";
   version = "0.85.4";
-  
+
   src = fetchFromGitHub {
     owner = "derikz";
     repo = "cpcfs";

pkgs/tools/networking/photon/default.nix

@@ -19,7 +19,7 @@ python3Packages.buildPythonApplication rec {
   installPhase = ''
     mkdir -p "$out"/{bin,share/photon}
     cp -R photon.py core plugins $out/share/photon
- 
+
     makeWrapper ${python3Packages.python.interpreter} $out/bin/photon \
       --set PYTHONPATH "$PYTHONPATH:$out/share/photon" \
       --add-flags "-O $out/share/photon/photon.py"

pkgs/tools/text/poedit/default.nix

@@ -11,13 +11,13 @@ stdenv.mkDerivation rec {
     sha256 = "0pvd903j2x3h9wh38fhlcn23d0jkjlqnfbdpbvnbhy6al1ngx72w";
   };
 
-  nativeBuildInputs = [ autoconf automake asciidoc wrapGAppsHook 
+  nativeBuildInputs = [ autoconf automake asciidoc wrapGAppsHook
     libxslt xmlto boost libtool pkgconfig ];
 
   buildInputs = [ lucenepp nlohmann_json wxGTK30 icu pugixml gtk2 gtkspell2 hicolor-icon-theme ];
 
   propagatedBuildInputs = [ gettext ];
-  
+
   preConfigure = "
     patchShebangs bootstrap
     ./bootstrap
@@ -29,11 +29,11 @@ stdenv.mkDerivation rec {
     "--with-boost-libdir=${boost.out}/lib"
     "CPPFLAGS=-I${nlohmann_json}/include/nlohmann/"
   ];
- 
+
   preFixup = ''
     gappsWrapperArgs+=(--prefix PATH : "${stdenv.lib.makeBinPath [ gettext ]}")
   '';
- 
+
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {