K 10 svn:author V 3 hrs K 8 svn:date V 27 2009-09-12T22:19:48.331578Z K 7 svn:log V 474 Add an extension of set_rcvar(), a new function set_rcvar_obsolete(), and $desc. The set_rcvar_obsolete() is for displaying an obsolete variable and the new one. More specifically, a warning is displayed when a variable is removed or changed in the source tree and the user still defines the old one. $router* and $ipv6_router* are replaced with $routed_* and $route6d_* for consistency. The old variables still work but can be removed in the future. MFC after: 3 days END