This patch applies only to filesystem.service
"fs 40.11 (6.9.93)" or "fs 40.12 (19.10.93)"
which was distributed with Envoy 1.0 and 1.6/1.65

The filesystem.service from Envoy has a bug: it doesn't initialize
dp_Arg1 when sending ACTION_FH_FROM_LOCK to the FS on the remote system,
conjuring enforcer hits or even worse things from the FileSystem.

Inspecting the code (following a hint of Matthias Scheler) shows,
that there is a FileHandle build up just like in ACTION_FINDXXX.
But this FileHandle is not used, instead the original pointer
from the transmitted packet is used, which does not contain
usable data. So this patch only puts the address of the prepared
FileHandle into the right place.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
-rw-r--r--  4069/10       1330    2966  44.8% -lh5- 497c Aug 30  1994 EPatsch1.0.rexx
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         1 file     1330    2966  44.8%            Nov 17  1994