awesome: use makeWrapper rather than wrapProgram

Using wrapProgram makes so that the generated "awesome" wrapper duplicates its
command line options at every restart.

As @psychon puts it:

> AwesomeWM restarts via execvp(argv[0], argv). In NixOS, wrapProgram is used
> to generate a wrapper around the real binary. wrapProgram calls makeWrapper
> with --argv0 '$0'. I guess this is what makes awesomeWM run the wrapper again
> on restart. Without this --argv0 awesomeWM would directly restart itself
> instead of the wrapper, I think.

pkgs/applications/window-managers/awesome/default.nix

@@ -48,7 +48,10 @@ with luaPackages; stdenv.mkDerivation rec {
   LUA_PATH  = "${lgi}/share/lua/${lua.luaversion}/?.lua;;";
 
   postInstall = ''
-    wrapProgram $out/bin/awesome \
+    # Don't use wrapProgram or or the wrapper will duplicate the --search
+    # arguments every restart
+    mv "$out/bin/awesome" "$out/bin/.awesome-wrapped"
+    makeWrapper "$out/bin/.awesome-wrapped" "$out/bin/awesome" \
       --set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE" \
       --add-flags '--search ${lgi}/lib/lua/${lua.luaversion}' \
       --add-flags '--search ${lgi}/share/lua/${lua.luaversion}' \