Add Escaping properly in Class Custom background Page

[shailu25]

In the class-custom-background.php , I noticed there are some missing escaping. I think these should be escaped properly.

Example:

<?php echo $input['label']; ?>

[shailu25]

Patch Added

[costdev]

There is another instance of this on Line 101 in:
wp-includes/customize/class-wp-customize-background-position-control.php

[shailu25]

Updated Patch

[shailu25]

@costdev

I have added escape for wp-includes/customize/class-wp-customize-background-position-control.php file's Instance.(Line no 101)