Description of problem:
Not a real problem, but I'm proposing some spec file cleanups for vnStat. Just 
have a look into my unified diff and ask what is unclear. Ifconfig is obsolete 
and thus replaced by "ip addr show". Some typos corrected, description tuned. 
Useradd having absolute path and require it as Guidelines show and remove the 
userdel, because when user data are remaining (like /var/lib/vnstat), the user 
should exist further on, as the uid of vnstat isn't reserved in /usr/share/doc/
setup-*/uidgid.

Version-Release number of selected component (if applicable):
vnstat-1.4-8

Expected results:
Please apply my patch to CVS and build a new version for the development tree.