[Samba] vfs_fruit: mangled if last char is dot

[HAT]

vfs_fruit and Netatalk are still incompatible when last char is dot.

On OS X:

$ cd /Volumes/NetatalkVol/
$ ls
abc.txt.

$ cd /Volumes/SambaVol/
$ ls
AL3JQG~9


vfs_fruit should convert last dot to 0xf029.
<http://support.microsoft.com/kb/q117258/>

-- 
HAT