what does . mean? (ls command output)

[Tom Horsley]

On fedora 11 preview, I just did a ls -l while sitting in the
/boot directory, and some of the files have a '.' at the end of
the permissions (some don't). Neither the man page nor the info
file for ls mention this dot that I can find. What in the blue
blazes does it mean?

-rw-r--r--. 1 root root 1626054 Apr 20 15:44 System.map-2.6.29.1-102.fc11.x86_64
-rw-r--r--  1 root root 1626169 Apr 24 11:08 System.map-2.6.29.1-111.fc11.x86_64

Looks kind like the above, but I got that from fedora 10, which
does *not* show the dot - I added it manually to show where it comes
out.