General: Remove “whitelist” and “blacklist” in favor of more clear and inclusive language.

“The WordPress open source community cares about diversity. We strive to maintain a welcoming environment where everyone can feel included.”

With this commit, all occurrences of “whitelist” and “blacklist” (with the single exception of the `$new_whitelist_options` global variable) are removed. A new ticket has been opened to explore renaming the `$new_whitelist_options` variable (#50434).

Changing to more specific names or rewording sentences containing these terms not only makes the code more inclusive, but also helps provide clarity. These terms are often ambiguous. What is being blocked or allowed is not always immediately clear. This can make it more difficult for non-native English speakers to read through the codebase.

Words matter. If one contributor feels more welcome because these terms are removed, this was worth the effort.

Props strangerstudios, jorbin, desrosj, joemcgill, timothyblynjacobs, ocean90, ayeshrajans, davidbaumwald, earnjam.
See #48900, #50434.
Fixes #50413.
Built from https://develop.svn.wordpress.org/trunk@48121


git-svn-id: http://core.svn.wordpress.org/trunk@47890 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/option.php

@@ -2097,8 +2097,8 @@ function register_initial_settings() {
  * @global array $new_whitelist_options
  * @global array $wp_registered_settings
  *
- * @param string $option_group A settings group name. Should correspond to a whitelisted option key name.
- *                             Default whitelisted option key names include 'general', 'discussion', 'media',
+ * @param string $option_group A settings group name. Should correspond to an allowed option key name.
+ *                             Default allowed option key names include 'general', 'discussion', 'media',
  *                             'reading', 'writing', 'misc', 'options', and 'privacy'.
  * @param string $option_name The name of an option to sanitize and save.
  * @param array  $args {