lowdown: 1.0.0 -> 1.0.1

Upstream now officially supports darwin and we can drop the workaround
we shipped for <kristapsdz/lowdown#87>.

It also creates the symlink from liblowdown.so to the version shared
object for us, but we still need to fix the library extension on darwin.

https://github.com/kristapsdz/lowdown/releases/tag/VERSION_1_0_1

pkgs/tools/typesetting/lowdown/default.nix

@@ -5,22 +5,15 @@
 
 stdenv.mkDerivation rec {
   pname = "lowdown";
-  version = "1.0.0";
+  version = "1.0.1";
 
   outputs = [ "out" "lib" "dev" "man" ];
 
   src = fetchurl {
     url = "https://kristaps.bsd.lv/lowdown/snapshots/lowdown-${version}.tar.gz";
-    sha512 = "2izqgzk677y511kms09c0hgar2ax5cd5hspr8djsa3qykaxq0688xkgfad00bl6j0jpixna714ipvqa0gxm480iz2sma7qhdgr6bl4x";
+    sha512 = "2jsskdrx035vy5kyb371swcn23vj7ww1fmrsalmyp1jc3459vgh2lk4nlvrw74r93z9yyzsq9vra2sspx173cpjlr8lyyqdw5h91lms";
   };
 
-  # Upstream always passes GNU-style "soname", but cctools expects "install_name".
-  # Whatever name is inserted will be replaced by fixDarwinDylibNames.
-  # https://github.com/kristapsdz/lowdown/issues/87
-  postPatch = lib.optionalString stdenv.isDarwin ''
-    substituteInPlace Makefile --replace soname install_name
-  '';
-
   nativeBuildInputs = [ which ]
     ++ lib.optionals stdenv.isDarwin [ fixDarwinDylibNames ];
 
@@ -58,8 +51,6 @@ stdenv.mkDerivation rec {
 
     lib.optionalString (enableShared && stdenv.isDarwin) ''
       mv $lib/lib/liblowdown.{so.1,1.dylib}
-    '' + lib.optionalString enableShared ''
-      ln -s $lib/lib/liblowdown*${sharedLibrary}* $lib/lib/liblowdown${sharedLibrary}
     '';
 
   doInstallCheck = stdenv.hostPlatform == stdenv.buildPlatform;