There is the problem, and my information was incorrect.
Freebsd 4.11 returns this with the command string:
ps -ax -ww -o
pid,ppid,user,start,state,pri,pcpu,cputime,pmem,rss,vsz,args
ps: args: keyword not found
PID PPID USER STARTED STAT PRI %CPU TIME %MEM RSS VSZ
0 0 root 31Aug05 DLs -18 0.0 0:04.53 0.0 0 0
Freebsd 6.1 returns: (as expected)
ps -ax -ww -o
pid,ppid,user,start,state,pri,pcpu,cputime,pmem,rss,vsz,args
PID PPID USER STARTED STAT PRI %CPU TIME %MEM RSS
VSZ COMMAND
0 0 root 17Jun06 WLs 98 0.0 0:00.00 0.0 0 0
[swapper]