[cvs-nhc98] extended -v to check for null pointers in wrong context

colin: Fri Apr 6 15:49:42 CEST 2001 Update of /usr/src/master/nhc/src/tracer/hat In directory hinken:/tmp/cvs-serv12884 Modified Files: hat-check.c Log Message: extended -v to check for null pointers in wrong context added -n to print textual version of single node only extended -a and -n to show whether each node reachable or not with -r