rpm --verify, timestamp differences

Hi,

Can anyone tell me why, on a newly-installed (from kickstart) minimal 
CentOS system, some of the packages fail verification because of 
timestamp differences on some files?

For example:
# rpm --verify device-mapper
.......T   /usr/include/libdevmapper-event.h
.......T   /usr/include/libdevmapper.h
.......T d /usr/share/man/man8/dmsetup.8.gz

Now, it would be possibly understandable if the files that were changed 
were config files, but those listed above are a couple of headers and a 
man page.

Why would the timestamps be different than the metadata in the RPM database?

R.