K 10 svn:author V 8 jmallett K 8 svn:date V 27 2002-05-30T19:34:31.000000Z K 7 svn:log V 258 Restructure sanity checks so that -I and -J just override eachother, rather than triggering a usage(). Allow -R and -I to be specified in any order, and thus change how -R checks for -I not being given and triggering a usage(). Partially requested by: gad END