🚀 go-pugleaf

From: John M Sellens <jmsellens>

This used to be in every Makefile-body:
# if $(package_dependencies) is empty,
#  then the following section should be deleted
	@-for name in $(package_dependencies); do\
		if [ ! -d ${Software}/$${name} ]; then \
			echo "The $${name} package is required for the proper";\
			echo "  operation of this package; please install it.";\
		fi \
	done

and has now been replaced by
	xh-check-package-dependencies $(package-dependencies)

That for is ugly, uses @, uses - (both very despicable things to use in
a Makefile), caused ugly things like this:
    *** Error code 1
     (ignored)
to appear in the middle of nowhere, and was yet one more thing to customize
in a Makefile-body.

Man page created in /software/xhier/man/man8.  As xhier has no source
directory, this was all done under /software/xhier.