r24136: get_lanman2_dir_entry() does not need access to inbuf/outbuf

r24136: get_lanman2_dir_entry() does not need access to inbuf/outbuf

It did not use inbuf anyway. Outbuf was used for alignment and to the
flags2. The alignment works ok if we align relative to base_data because this
and outbuf are both malloc'ed, and we put send_trans2_replies aligns out_data
properly relative to the start of the outbuf.

I don't know if the explicit align_string() calls in get_lanman2_dir_entry are
really necessary. I think that srvstr_push also does the same.

Please also note that this changes dst_len in srvstr_push from -1 to the real
length remaining.

Volker