Tweaks per Hans.
Add check target by default.  Fix packaging.  And make check output match
hdrchk, etc.

@@ -30,10 +30,11 @@
 
 $(ROOTMAN)/man$(MANSECT)/% $(ROOTHASMAN)/man$(MANSECT)/%: %
                 $(INS.file)
 
 $(MANCHECKS):
+                @$(ECHO) "checking $(@:%.check=%)"; \
                 $(MANDOC) -Tlint $(@:%.check=%)
 
 $(MANLINKS):
                 $(RM) $@; $(SYMLINK) $(LINKSRC) $@