fix logrotate buffer overflow

[Patrick O'Callaghan]

On Wed, 2011-03-16 at 18:15 -0700, Colin McCabe wrote:
> This patch fixes a buffer overflow in logrotate. The diff was done
> against trunk on http://svn.fedorahosted.org/svn/logrotate/
> 
> Sorry if this is the wrong place to post this. I didn't see a mailing
> list mentioned on the project page at
> https://fedorahosted.org/logrotate/

Bugs should be reported to Bugzilla, so that would probably be the best
place for an isolated patch.

poc