WP_Ajax_Upgrader_Skin::get_error_messages(): string

88	public function get_error_messages() {89		$messages = array();90 91		foreach ( $this->errors->get_error_codes() as $error_code ) {92			$error_data = $this->errors->get_error_data( $error_code );93 94			if ( $error_data && is_string( $error_data ) ) {95				$messages[] = $this->errors->get_error_message( $error_code ) . ' ' . esc_html( strip_tags( $error_data ) );96			} else {97				$messages[] = $this->errors->get_error_message( $error_code );98			}99		}100 101		return implode( ', ', $messages );102	}