fix: type annotation

lua/gopher/iferr.lua

···
 
   vim.fn.append(pos, u.remove_empty_lines(vim.split(rs.stdout, "\n")))
   vim.cmd [[silent normal! j=2j]]
-  vim.fn.setpos(".", pos)
+  vim.fn.setpos(".", pos --[[@as integer[] ]])
 end
 
 return iferr

plugin/gopher.lua

···
 end, "*")
 
 cmd("GoGenerate", function(opts)
-  require("gopher").generate(opts.fargs or "")
+  require("gopher").generate(opts.fargs or { "" })
 end, "?")