Log Message:

Version 0.5.1, by Aleksey Cheusov

   FIXED: pkg_update_summary fails under Linux, Solaris, Interix and
   probably other OSes when there are no binary packages in a specified
   directory.  This happens because xargs works differently on
   NetBSD/FreeBSD and Linux/Solaris/Interix. In NetBSD/FreeBSD xargs's
   command is NOT run at all when there is no input, while on L/S/I it is
   run once without arguments and (pkg_info -X in our case) fails.

   DESCR improved

   Minor fixes in documentation ans NEWS