XXX if we go for extra tags and branches stuff, then add the extra details
here
+Optionally, you might want to compress your tarball more. Unix F<gzip>
+doesn't actually produce the smallest possible DEFLATE output. If you have the
+AdvanceCOMP suite (e.g. the C<advancecomp> port on macports), you can run
+
+ $ advdef -z -4 ../perl-x.y.z-RC1.tar.gz
+
+which will probably shrink your tarball by about 5%. Over the lifetime of
+your distribution this will save a lot of people a small amount of download
+time and disk space, which adds up.
+
+(7-Zip on Windows is the same code as AdvanceCOMP, so Windows users get the
+smallest files first time)
+
=item *
Clean up the temporary directory, e.g.