wpkg --numbers ...

The --numbers option is used with the --contents command line option. It requests the display of the owner, group, and mode of each file to be displayed as a number instead of strings or letters.

For example, the mode 664 for a regular file is shown as "-rw-rw-r--". When --numbers is used, then 664 is shown.

The owner and group are always saved as numbers (possibly 0 to represent root) but when just looking at the name it may not correspond to the correct user. Although the installer uses the name if available, it is a good idea to make sure that the names and numbers correspond to what you expect in your package. The --numbers can be used to that effect.