sub MY::postamble {
<<'EOF';
RSYNC_DEST = public-inbox.org:/srv/public-inbox/
-docs = README COPYING $(shell git ls-files Documentation/ '*.txt')
+docs = README COPYING INSTALL $(shell git ls-files Documentation/ '*.txt')
gz_docs = $(addsuffix .gz, $(docs))
%.gz: %
gzip -9 --rsyncable < $< > $@+