bin/cli: Set correct file extension (#140)

bin/cli: Set correct file extension

Author: Robert Jackson

bin/cli.js

@@ -4,5 +4,6 @@
 require('codemod-cli').runTransform(
   __dirname,
   process.argv[2] /* transform name */,
-  process.argv.slice(3) /* paths or globs */
+  process.argv.slice(3) /* paths or globs */,
+  'hbs'
 );