Log Message:
Update to 0.7.1.

Changes:
o Fixed bug in UDP connection code, using pktinfo support. [BUG #796765]
o Fixed a segfault in the DNS lookup routines, caused by invalid DNS
  configurations.
o Fixed two compilation issues on SCO Unix 3.2 v 5.0.4. [BUG #857650],
  [BUG #857657]
o Fixed bug in command line switch `-i' on non-linux OS such as Solaris.
  [BUG #864780]
o The debugging support now works on libc's that don't allow NULL pointers
  passed for string (`%s') modifiers.