K 10 svn:author V 3 bde K 8 svn:date V 27 1997-12-21T00:00:44.000000Z K 7 svn:log V 196 Fixed overflow in chkrange(). Some out of bounds block numbers, e.g. -1, were not detected. Use a bulletproof check that doesn't depend on special properties of the args or the limit. PR: 3528 END