{nodePackages.jsonlint,luaPackages.luacheck}: add meta.mainProgram (#358173)

pkgs/development/lua-modules/overrides.nix

@@ -302,6 +302,12 @@ in
     ];
   });
 
+  luacheck = prev.luacheck.overrideAttrs (oa: {
+    meta = oa.meta // {
+      mainProgram = "luacheck";
+    };
+  });
+
   lua-curl = prev.lua-curl.overrideAttrs (oa: {
     buildInputs = oa.buildInputs ++ [
       curl.dev

pkgs/development/node-packages/node-packages.nix

@@ -71306,6 +71306,7 @@ in
     meta = {
       description = "Validate JSON";
       homepage = "http://zaach.github.com/jsonlint/";
+      mainProgram = "jsonlint";
     };
     production = true;
     bypassCache = true;