Include the numeric error code in win_strerror's output.

This will be useful if someone gets a mysterious Windows error on a
system configured into a language we don't speak - if they cut and
paste the error message to send to us, then we won't have to try to
translate it.


git-svn-id: svn://svn.tartarus.org/sgt/putty@10092 cda61777-01e9-0310-a592-d414129be87e
Pass the right number of entries to SetEntriesInAcl!


git-svn-id: svn://svn.tartarus.org/sgt/putty@10093 cda61777-01e9-0310-a592-d414129be87e
SetEntriesInAcl returns its error code directly.

According to the MSDN documentation, that is. Why oh why? Everything
_else_ leaves it in GetLastError().


git-svn-id: svn://svn.tartarus.org/sgt/putty@10094 cda61777-01e9-0310-a592-d414129be87e