Add new rtacct/nstat manpages and additional symlinks.

Symlink rtstat(8) and ctstat(8) to lnstat(8).
Add rtacct/nstat manpage based on doc/nstat.sgml as rtacct(8).
Symlink nstat(8) to rtacct(8).
Add arpd(8) symlink based on doc/arpd.sgml.

Signed-off-by: Andreas Henriksson <andreas@fatal.se>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
diff --git a/Makefile b/Makefile
index af0d5e4..6c976dd 100644
--- a/Makefile
+++ b/Makefile
@@ -53,6 +53,9 @@
 	install -m 0755 -d $(DESTDIR)$(MANDIR)/man8
 	install -m 0644 $(shell find man/man8 -maxdepth 1 -type f) $(DESTDIR)$(MANDIR)/man8
 	ln -sf tc-bfifo.8  $(DESTDIR)$(MANDIR)/man8/tc-pfifo.8
+	ln -sf lnstat.8  $(DESTDIR)$(MANDIR)/man8/rtstat.8
+	ln -sf lnstat.8  $(DESTDIR)$(MANDIR)/man8/ctstat.8
+	ln -sf rtacct.8  $(DESTDIR)$(MANDIR)/man8/nstat.8
 	install -m 0755 -d $(DESTDIR)$(MANDIR)/man3
 	install -m 0644 $(shell find man/man3 -maxdepth 1 -type f) $(DESTDIR)$(MANDIR)/man3