linux-libertine-g: use installFonts (#513555)

pkgs/by-name/li/linux-libertine-g/package.nix

@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchzip,
+  installFonts,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -13,10 +14,7 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-UGTB7jsI6peivCtEt96RCSi5XHCrnjCSs0Ud5bF7uxk=";
   };
 
-  installPhase = ''
-    mkdir -p $out/share/fonts/truetype
-    cp -r *.ttf $out/share/fonts/truetype
-  '';
+  nativeBuildInputs = [ installFonts ];
 
   meta = {
     description = "Graphite versions of Linux Libertine and Linux Biolinum font families for LibreOffice and OpenOffice.org";