Update templates/cli/index.js.twig

Co-authored-by: Matej Bačo <[email protected]>

Author: christyjacob4

templates/cli/index.js.twig

@@ -1,7 +1,7 @@
 #! /usr/bin/env node
 
 /** Required to set max width of the help commands */
-let oldWidth = process.stdout.columns
+const oldWidth = process.stdout.columns
 process.stdout.columns = 100
 /** ---------------------------------------------- */