After [33891], get_comment() returns global $comment if no args are passed and the global is set (after setting the default to null here). This allows us to ditch global comment imports.

See #33638.


git-svn-id: https://develop.svn.wordpress.org/trunk@33963 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/comment-functions.php

@@ -169,7 +169,7 @@ function get_approved_comments( $post_id, $args = array() ) {
  * @param string $output Optional. OBJECT or ARRAY_A or ARRAY_N constants.
  * @return WP_Comment|array|null Depends on $output value.
  */
-function get_comment(&$comment, $output = OBJECT) {
+function get_comment( &$comment = null, $output = OBJECT ) {
 	if ( empty( $comment ) && isset( $GLOBALS['comment'] ) ) {
 		$comment = $GLOBALS['comment'];
 	}