Fix a few issues with the lib32 dist so that it includes ldd32.

- Use a better find invocation to purge empty directories from all the dist
  trees during a release build.  The previous version did not purge
  directories whose contents were all empty directories.
- Explicitly blacklist a few files from the lib32 dist instead of using a
  whitelist.  A better longterm solution is to fix the few offenders to not
  install data files during a lib32 install.

MFC after:	3 days

release/Makefile

@@ -696,7 +696,7 @@ release.5:
 	# Remove all the directories we don't need.
 	-cd ${RD}/trees && \
 		(find ${OTHER_DISTS} -path '*/var/empty' | xargs chflags noschg; \
-		find ${OTHER_DISTS} -depth -type d -empty -print | xargs rmdir)
+		find ${OTHER_DISTS} -depth -type d -empty -delete)
 	touch ${.TARGET}
 
 #

release/scripts/lib32-make.sh

@@ -5,4 +5,4 @@
 
 # Clean the dust.
 cd ${RD}/trees/lib32 && \
-    find . ! -path '*/libexec/*' ! -path '*/usr/lib32/*' -delete
+    find . '(' -path '*/usr/share/*' -or -path '*/usr/lib/*' ')' -delete