Chore: Add missing void to doc-blocks return types.

src/wp-admin/includes/class-wp-privacy-requests-table.php

@@ -430,7 +430,7 @@ public function column_cb( $item ) {
 	 * @since 4.9.6
 	 *
 	 * @param WP_User_Request $item Item being shown.
-	 * @return string Status column markup.
+	 * @return string|void Status column markup. Returns a string if no status is found, otherwise it echos the markup.
 	 */
 	public function column_status( $item ) {
 		$status        = get_post_status( $item->ID );

src/wp-includes/class-wp-recovery-mode.php

@@ -161,9 +161,9 @@ public function is_initialized() {
 	 * @since 5.2.0
 	 *
 	 * @param array $error Error details from `error_get_last()`.
-	 * @return true|WP_Error True if the error was handled and headers have already been sent.
-	 *                       Or the request will exit to try and catch multiple errors at once.
-	 *                       WP_Error if an error occurred preventing it from being handled.
+	 * @return true|WP_Error|void True if the error was handled and headers have already been sent.
+	 *                            Or the request will exit to try and catch multiple errors at once.
+	 *                            WP_Error if an error occurred preventing it from being handled.
 	 */
 	public function handle_error( array $error ) {
 

src/wp-includes/class-wp-widget.php

@@ -138,7 +138,7 @@ public function update( $new_instance, $old_instance ) {
 	 * @since 2.8.0
 	 *
 	 * @param array $instance The settings for the particular instance of the widget.
-	 * @return string Default return is 'noform'.
+	 * @return string|void Default return is 'noform'.
 	 */
 	public function form( $instance ) {
 		echo '<p class="no-options-widget">' . __( 'There are no options for this widget.' ) . '</p>';