vimPlugins.openscad-nvim: fix patch

  openscad-nvim = super.openscad-nvim.overrideAttrs (old: {

    buildInputs = [ zathura htop openscad ];

    patches = [ ./patches/openscad.nvim/program_paths.patch ];

    postPatch = ''

      substituteInPlace lua/openscad.lua --replace '@zathura-path@' ${zathura}/bin/zathura

      substituteInPlace autoload/health/openscad_nvim.vim --replace '@zathura-path@' ${zathura}/bin/zathura

      substituteInPlace lua/openscad/terminal.lua --replace '@htop-path@' ${htop}/bin/htop

      substituteInPlace autoload/health/openscad_nvim.vim --replace '@htop-path@' ${htop}/bin/htop

      substituteInPlace lua/openscad.lua --replace '@openscad-path@' ${openscad}/bin/openscad

    '';

    patches = [

      (substituteAll {

        src = ./patches/openscad.nvim/program_paths.patch;

        htop = lib.getExe htop;

        openscad = lib.getExe openscad;

        zathura = lib.getExe zathura;

      })

    ];

  });

  orgmode = super.orgmode.overrideAttrs (old: {

 function! s:check_zathura_installed() abort

-	if !executable('zathura')

+	if !executable('@zathura-path@')

+	if !executable('@zathura@')

 		call health#report_error('has(zathura)','install zathura')

 	else

 		call health#report_ok("zathura is installed")

 function! s:check_htop_installed() abort

-	if !executable('htop')

+	if !executable('@htop-path@')

+	if !executable('@htop@')

 		call health#report_error('has(htop)','install htop')

 	else

 		call health#report_ok("htop is installed")

 function M.manual()

     local path = U.openscad_nvim_root_dir .. U.path_sep .. "help_source" .. U.path_sep .. "openscad-manual.pdf"

-    api.nvim_command('silent !zathura --fork '  .. path)

+    api.nvim_command('silent !@zathura-path@ --fork '  .. path)

+    api.nvim_command('silent !@zathura@ --fork '  .. path)

 end

 function M.help()

@@ -119,7 +119,7 @@ end

 function M.exec_openscad()

     -- maybe just use api.jobstart .. instead

-    api.nvim_command[[ call jobstart('openscad ' . shellescape(expand('%:p')), {'detach':1}) ]]

+    api.nvim_command[[ call jobstart('@openscad-path@ ' . shellescape(expand('%:p')), {'detach':1}) ]]

@@ -125,7 +125,7 @@ function M.exec_openscad()

 		jobCommand = '/Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD ' .. vim.fn.expand('%:p')

 	else

 		-- TODO: What about Windows?

-		jobCommand = 'openscad ' .. vim.fn.expand('%:p')

+		jobCommand = '@oepnscad@ ' .. vim.fn.expand('%:p')

 	end

 function M.default_mappings()

 	vim.fn.jobstart(jobCommand)