[Samba] How to disable "net ads join" verbose and why it core dumps

[Chere Zhou]

This is with samba-3.0a20 on freebsd.  I used 3.0a19 on another different 
freebsd version before and it worked.

Run the command "net ads join" shows:
# net ads join
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from UCS-2LE to CP850 not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from UTF8 to CP850 not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from ASCII to CP850 not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from CP850 to UCS-2LE not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from CP850 to UTF8 not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from CP850 to ASCII not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from CP850 to UTF8 not supported
[2002/12/17 14:23:32, 0] lib/charcnv.c:init_iconv(93)
  Conversion from UTF8 to CP850 not supported
Segmentation fault (core dumped)

I have run "kinit" successfully.  Questions are: How do I make the net 
command to not show all these messages, and why it would do a core dump?

Thanks in advance.

Chere