NetBSD/usr.bin/ktrace
itohy 99624b0b6d Fix fowllowing problems:
1. If fork()ing, the program is executed twice.
2. If the ktruss(1) output is bufferd, the final output is not flushed
   (because it is executing).

    % ktrace -f - rm >/dev/null
    usage: rm [-dfiPRrW] file ...
    usage: rm [-dfiPRrW] file ...
    % ktruss date | cat
    Fri Jul 23 12:09:45 JST 1999
    Fri Jul 23 12:09:46 JST 1999
    %
1999-07-23 03:10:49 +00:00
..
Makefile
ktrace.1
ktrace.c
ktrace.h
subr.c