select_tag outputs value of include_blank into HTML

[tdreyno]

Looks like the include_blank key isn't getting removed from the hash before it is passed along to the tag helper.

This must have changed between 0.12.0 and 0.12.1.

Inputs:

<%= select_tag :colors, options: ["red", "blue", "blorange"], include_blank: "Choose a color" %>

0.12.1 output:

    <select name="colors" include_blank="Choose a color"><option value="">Choose a color</option>
    <option value="red">red</option>
    <option value="blue">blue</option>
    <option value="blorange">blorange</option>
    </select>

[ujifgc]

Thanks for your report.