Minor cleanups.

doc/Makefile

@@ -50,22 +50,28 @@ mostlyclean clean distclean maintainer-clean:
 
 %.1 : %.pod
 	pod2man --center=" " --release="$(PACKAGE) $(VERSION)" --date="$(VERSION_DATE)" $< | $(RTRIM) > $@
+	test -s $@
 
 %.doc : %.pod
 	pod2text < $< | $(RTRIM) > $@
+	test -s $@
 
 %.html : %.pod
 	pod2html --noindex $< | $(RTRIM) | $(DETAB2) > $@
 	@rm -f pod2htm*
+	test -s $@
 
 %.man : %.1
 	nroff -man $< | $(RTRIM) > $@
+	test -s $@
 
 %.ps : %.1
 	groff -man $< | $(RTRIM) > $@
+	test -s $@
 
 %.tex : %.pod
 	pod2latex $<
+	test -s $@
 
 
 ###

doc/upx.pod

@@ -14,7 +14,7 @@ B<upx> S<[ I<command> ]> S<[ I<options> ]> I<filename>...
 
                     The Ultimate Packer for eXecutables
    Copyright (c) 1996-2017 Markus Oberhumer, Laszlo Molnar & John Reiser
-                        http://upx.sourceforge.net
+                           https://upx.github.io
 
 
 B<UPX> is a portable, extendable, high-performance executable packer for