Add config to rc-help.sh

sh/rc-help.sh

@@ -178,6 +178,12 @@ ${CYAN}Dependencies:${OFF}
       of a system logger depend on 'logger'.  This should make things much more
       generic.
 
+	${GREEN}config${OFF}
+	  This is not really a dependency type, rather it informs the dependency
+	  system about config files that may affect the dependencies of the service.
+	  One example of this is the netmount service which changes its dependencies
+	  depending on the config of /etc/fstab.
+
     Note that the 'need', 'use', 'before', and 'after' dependency types accept
     an '*' as an argument.  Having: