OLE32: Fix test for STGM_SHARE_EXCLUSIVE on nameless DocFiles

[Troy Rollo]

Discussed with Mike, this test was the wrong way around (it should require 
STGM_SHARE_EXCLUSIVE, not forbid it).

ChangeLog:
 Fix test for STGM_SHARE_EXCLUSIVE on nameless DocFiles
-------------- next part --------------
A non-text attachment was scrubbed...
Name: stg.diffs
Type: text/x-diff
Size: 607 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20050321/58b24b42/stg.bin