* In dsniff-nox11/Makefile, add a post-configure target to move
missing/sys/queue.h out of the way if the configure script
found a real sys/queue.h.
* Add patches to #include <string.h> in some files where I noticed warnings.
Bump PKGREVISION for both dsniff and dsniff-nox11.
INSTALLATION_DIRS, as well as all occurrences of ${PREFIX}/man with
${PREFIX}/${PKGMANDIR}.
Fixes PR 35265, although I did not use the patch provided therein.