daemonize: switch to fetchFromGitHub

pkgs/tools/system/daemonize/default.nix

@@ -1,18 +1,20 @@
-{ lib, stdenv, fetchurl }:
+{ lib, stdenv, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
   pname = "daemonize";
   version = "1.7.8";
 
-  src = fetchurl {
-    url    = "https://github.com/bmc/daemonize/archive/release-${version}.tar.gz";
-    sha256 = "0q2c3i3si3k7wfhl6fyckkmkc81yp67pz52p3ggis79p4nczri10";
+  src = fetchFromGitHub {
+    owner = "bmc";
+    repo = "daemonize";
+    rev = "release-${version}";
+    sha256 = "1e6LZXf/lK7sB2CbXwOg7LOi0Q8IBQNAa4d7rX0Ej3A=";
   };
 
   meta = with lib; {
     description = "Runs a command as a Unix daemon";
-    homepage    = "http://software.clapper.org/daemonize/";
-    license     = licenses.bsd3;
+    homepage = "http://software.clapper.org/daemonize/";
+    license = licenses.bsd3;
     platforms = with platforms; linux ++ freebsd ++ darwin;
   };
 }