Install the sample pdnsd.conf as /S/S/pdnsd.conf and not /S/S/pdnsd.conf.sample;
The rationale is that the administrator doesn't have to manually rename the file
and edit it; also UpdateSettings will behave as expected if re-installing
(pdnsd.conf won't be "missing" in the new default settings).

diff -Naur pdnsd-1.2.7-org/doc/Makefile.am pdnsd-1.2.7/doc/Makefile.am
--- pdnsd-1.2.7-org/doc/Makefile.am	2005-01-17 23:49:48.000000000 +0100
+++ pdnsd-1.2.7/doc/Makefile.am	2008-11-06 23:22:43.000000000 +0100
@@ -11,7 +11,7 @@
 install-data-hook:
 	$(mkinstalldirs) $(DESTDIR)$(sysconfdir)
 	if test `whoami` = "root"; then \
-	  $(INSTALL) -o 0 -g 0 -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf.sample ; \
+	  $(INSTALL) -o 0 -g 0 -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf ; \
 	else \
-	  $(INSTALL) -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf.sample ; \
+	  $(INSTALL) -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf ; \
 	fi
diff -Naur pdnsd-1.2.7-org/doc/Makefile.in pdnsd-1.2.7/doc/Makefile.in
--- pdnsd-1.2.7-org/doc/Makefile.in	2008-09-04 18:20:37.000000000 +0200
+++ pdnsd-1.2.7/doc/Makefile.in	2008-11-06 23:23:04.000000000 +0100
@@ -402,9 +402,9 @@
 install-data-hook:
 	$(mkinstalldirs) $(DESTDIR)$(sysconfdir)
 	if test `whoami` = "root"; then \
-	  $(INSTALL) -o 0 -g 0 -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf.sample ; \
+	  $(INSTALL) -o 0 -g 0 -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf ; \
 	else \
-	  $(INSTALL) -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf.sample ; \
+	  $(INSTALL) -m 644 pdnsd.conf $(DESTDIR)$(sysconfdir)/pdnsd.conf ; \
 	fi
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.