Have distrib-dirs, distribution, hier, hierarchy, redistribute, and reinstall
depend on the .MAKE special target

This will allow users to do something like the following to print out the
results of the running the simulated make target with bmake, like some of the
other top-level make targets in Makefile.inc1:

  % make -f Makefile.inc1 -n distribution TARGET=i386 TARGET_ARCH=i386

MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
Clean the generated baseline files by adding them to CLEANFILES.