Don't use a dot in the chown command. In fact, don't use a chown command.

Don't use a dot in the chown command.  In fact, don't use a chown command.
Use mtree instead of mkdir+chown+chmod to build the subdirectory hierachy.
The corresponding mtree command in src/etc/Makefile can't be relied on
because the hierachy gets blown away in the default SHARED=symlinks case.