fix: typo

Author: bsssssss

lua/scnvim/sclang.lua

@@ -28,7 +28,7 @@ local on_stdout = function()
       local got_line = vim.endswith(str, '\n')
       if got_line then
         local lines = vim.split(str, '\n')
-        if #lines > 0 and lines[#lines] == "" then
+        if #lines > 0 and lines[#lines] == '' then
           table.remove(lines)
         end
         for _, line in pairs(lines) do