Docs: Improve description for `term_exists()` `$term` param.

Props Kenshino.
Fixes #37224.
Built from https://develop.svn.wordpress.org/trunk@38716


git-svn-id: http://core.svn.wordpress.org/trunk@38659 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/taxonomy.php

@@ -1397,7 +1397,7 @@ function update_termmeta_cache( $term_ids ) {
  *
  * @global wpdb $wpdb WordPress database abstraction object.
  *
- * @param int|string $term     The term to check
+ * @param int|string $term     The term to check. Accepts term ID, slug, or name.
  * @param string     $taxonomy The taxonomy name to use
  * @param int        $parent   Optional. ID of parent term under which to confine the exists search.
  * @return mixed Returns null if the term does not exist. Returns the term ID

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38715';
+$wp_version = '4.7-alpha-38716';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.