R{ttat buggar i distclean.

doc/man/Makefile

@@ -22,7 +22,7 @@ distclean: clean
 	-for i in $(MANEXTS); \
 	do \
 	   [ -d man$$i ] && { echo making clean in directory man$$i; \
-	   (cd man$$i; $(RM) *.ps *.cat *.man *.txt) } \
+	   (cd man$$i; $(RM) *.ps *.cat *.man *.txt $(GENERIC-DIST-CLEAN)) } \
 	done
 
 install: