Fix typo in a comment.

props JustinSainton.
see #20496.
Built from https://develop.svn.wordpress.org/trunk@28878


git-svn-id: http://core.svn.wordpress.org/trunk@28677 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add `->get_quality()` method to `WP_Image_Editor` class.

Adds unit tests.

Props markoheijnen.
Fixes #28154.

Built from https://develop.svn.wordpress.org/trunk@28879


git-svn-id: http://core.svn.wordpress.org/trunk@28678 1a063a9b-81f0-0310-95a4-ce76da25c4cd
If the `get_the_excerpt()` is called out of bounds of a global `$post`, return ''.

Fixes #22413.

Built from https://develop.svn.wordpress.org/trunk@28880


git-svn-id: http://core.svn.wordpress.org/trunk@28679 1a063a9b-81f0-0310-95a4-ce76da25c4cd