- fix compilation against newer libevent by dropping obsolete external references
- fix uninitialized pointer to pcap pattern leading to invalid filter patterns even if -a is not used
- remove dependency on @BROKEN
git-svn-id: svn://svn.openwrt.org/openwrt/packages@21268 3c298f89-4303-0410-b956-a3cf2f4a3e73
