bp_activity_comment_posted hook documentation

[henry.wright]

	/**
	 * Fires near the end of an activity comment posting, before the returning of the comment ID.
	 *
	 * @since 1.2.0
	 *
	 * @param int   $comment_id ID of the newly posted activity comment.
	 * @param array $r          Array of parsed comment arguments.
	 * @param int   $activity   ID of the activity item being commented on.
	 */
	do_action( 'bp_activity_comment_posted', $comment_id, $r, $activity );

The docs mentions $activity is type int but it's actually an object of type BP_Activity_Activity

[boonebgorges]

In 10270:

Fix documentation for 'bp_activity_comment_posted' hook.

Props henry.wright.
Fixes #6661.