add new build targets 'user' and 'user_install'.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1822 7894878c-1315-0410-8ee3-d5d059ff63e0

etc/Module.mk

@@ -31,6 +31,6 @@ install-etc:
 	if [ ! -e $(DESTDIR)$(ETCINSTALL) ] ; then \
 	  $(INSTALL) -o  root -g root -m 644 $(ETCTARGET) $(DESTDIR)$(ETCINSTALL); \
 	fi
-install :: install-etc
+user_install :: install-etc
 
 # No clean rule