tabs fixed, added descriptive error message for bad fzf flags

lua/fzf-lua/core.lua

@@ -42,6 +42,7 @@ M.fzf = function(opts, contents)
   fzf_win:create()
   local selected = fzf.raw_fzf(contents, M.build_fzf_cli(opts),
     { fzf_binary = opts.fzf_bin })
+  fzf_win:check_exit_status()
   if fzf_win:autoclose() == nil or fzf_win:autoclose() then
     fzf_win:close()
   end

lua/fzf-lua/providers/buffers.lua

@@ -289,6 +289,7 @@ M.tabs = function(opts)
     return res
   end
 
+
   local filtered, excluded = filter_buffers(opts, opts._list_bufs())
   if not next(filtered) then return end
 
@@ -298,7 +299,6 @@ M.tabs = function(opts)
       bufnrs[b] = nil
     end
   end
-
   coroutine.wrap(function ()
     local items = {}
 
@@ -324,7 +324,7 @@ M.tabs = function(opts)
     opts.fzf_opts["--no-multi"] = ''
     opts.fzf_opts["--preview-window"] = 'hidden:right:0'
     opts.fzf_opts["--delimiter"] = vim.fn.shellescape('[\\)]')
-    opts.fzf_opts["---with-nth"] = '2'
+    opts.fzf_opts["--with-nth"] = '2'
 
     local selected = core.fzf(opts, items)
 

lua/fzf-lua/win.lua

@@ -170,6 +170,14 @@ function FzfWin:reset_win_highlights(win, is_border)
   vim.api.nvim_win_set_option(win, 'winhighlight', hl)
 end
 
+function FzfWin:check_exit_status()
+  if not self:validate() then return end
+  local lines = vim.api.nvim_buf_get_lines(self.fzf_bufnr, 0, 1, false)
+  if lines and #lines[1]>0 then
+    utils.warn("fzf error: " .. lines[1])
+  end
+end
+
 function FzfWin:_set_autoclose(autoclose)
   if autoclose ~= nil then
     self._autoclose = autoclose