5 is the MD5 checksum of the file. D is the file's major and minor numbers. L is the file's symbolic link contents. U is owner of the file. G is the file's group.
T is the modification time of the file.
This is handy for quickly identifying config files, as they are very likely to change, and therefore, very unlikely to verify successfully. The complete path is listed to make it easy to find. It's unlikely that every file attribute will fail to verify, so each of the eight attribute flags will only appear if there is a problem. In this case, the mode, MD5 checksum, and modification time for the specified file have failed to verify. Here, the size, checksum, and modification time of the system password file have all changed.