Submit theme warning - replace esc_attr with esc_html

[dgwyer]

🐞 bug report

Behavior:

• What is the issue? (*) When uploading themes to wordpress.org the following warning is triggered:

• What is the expected behavior? The specified line of code in the SDK needs esc_attr replacing with esc_html.

https://github.com/Freemius/wordpress-sdk/blob/master/templates/forms/subscription-cancellation.php#L136

Versions: (*)

• Freemius SDK Version: 2.3.2
• WordPress Version: 5.2
• PHP Version: 7.0

[dgwyer]

This is an easy fix as esc_attr and esc_html are almost identical: https://core.trac.wordpress.org/browser/trunk/src/wp-includes/formatting.php#L4449

I can take this one.

[amitbajracharya]

While testing with theme checker there is not error or warning. Now that I submitted in wp org it failed. Here is the error that I got.