Migration generator bug for decorators

[brianwebb01]

this code blacksmith generate author scaffold ~/Desktop/blksm_cust_tpl/config.json --fields="name:string[50]"

Generates this:

public function up()
    {
        Schema::create('authors', function(Blueprint $table) {
            $table->increments('id');
            $table->string[50]('name');
            $table->timestamps();
        });
    }

Should be:

$table->string('name', 50);