chore: fix luacheck offenses

Author: NTBBloodbath

.luacheckrc

@@ -1,15 +1,16 @@
 -- Use lua52 so we will no receive errors regarding to goto statements
-std = 'lua52+busted'
+std = "lua52+busted"
 
 -- Rerun tests only if their modification time changed
 cache = true
 
 ignore = {
-	'631', -- max_line_length
+  "122", -- Setting a read-only field of a global variable
+  "631", -- Line is too long
 }
 
 read_globals = {
-	'vim',
+  "vim",
 }
 
 -- vim: ft=lua

lua/rest-nvim/functions.lua

@@ -124,7 +124,7 @@ function functions.exec(scope)
     result.write_res(result_buf, req_results)
 
     -- Load the script variables
-    if req_results.script ~= nil or not req_results.script == "" then
+    if not (req_results.script == "" or req_results.script == nil) then
       script_vars.load(req_results.script, req_results)
     end
 

lua/rest-nvim/result/init.lua

@@ -200,7 +200,7 @@ local function format_body(bufnr, headers, res)
   end
 
   -- Do not try to format binary content
-  local body = {}
+  local body
   if res_type == "octet-stream" then
     body = { "Binary answer" }
   else