Comment 7 for bug 1938886

Based on https://elixir.bootlin.com/linux/latest/source/fs/inode.c#L1928 it seems that setuid and capabilities will be stipped, thus currently our implementation of dh_strip causes to loose setuid and capabilities.

No idea why this is working with fakeroot when Rules-Requires-Root is set to binary-targets.
And doesn't when it is set to "no".

chmod +s debian/virtualbox/usr/lib/virtualbox/VBoxSDL
ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
-rwsr-sr-x 1 xnox xnox 166208 Aug 4 18:59 debian/virtualbox/usr/lib/virtualbox/VBoxSDL
$ cat debian/control | grep Rules
Rules-Requires-Root: no
$ fakeroot dh_strip -pvirtualbox
$ ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
-rwxr-xr-x 1 xnox xnox 166208 Aug 4 18:59 debian/virtualbox/usr/lib/virtualbox/VBoxSDL

$ chmod +s debian/virtualbox/usr/lib/virtualbox/VBoxSDL
$ ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
-rwsr-sr-x 1 xnox xnox 166208 Aug 4 18:59 debian/virtualbox/usr/lib/virtualbox/VBoxSDL
$ sed '/Rules-Requires-Root/s/no/binary-targets/' -i debian/control
$ cat debian/control | grep Rules
Rules-Requires-Root: binary-targets
$ fakeroot dh_strip -pvirtualbox
$ ls -latr debian/virtualbox/usr/lib/virtualbox/VBoxSDL
-rwxr-xr-x 1 xnox xnox 166208 Aug 4 19:01 debian/virtualbox/usr/lib/virtualbox/VBoxSDL