[Samba] you'd better fix this before releasing 3.0.1

[trogl at shaw.ca]

Solaris 2.6 gcc 2.95.3

Compiling tdb/tdbbackup.
Linking bin/tdbbackup
Undefined    first referenced
Symbol       in file
smb_snprintf  tdb/tdbackup.o

I thought we'd fixed this already.