filedialog initial dir fix

[Rein Klazes]

Hi,

Since the latest file handling function SetCurrentDirectory(path)
correctly returns an error on an empty path where it returned success
before.
FILEDLG_ScanDir() depended on this behavior in such a way that now the
initial dir does not show any files until the dir is changed.

Changelog:
	dlls/commdlg	: filedlg16.c
	In FILEDLG_ScanDir do not try to set the current directory to a
	path that is empty.

Rein.
-- 
Rein Klazes
rklazes at xs4all.nl
-------------- next part --------------
--- wine/dlls/commdlg/filedlg16.c	2004-04-27 07:34:12.000000000 +0200
+++ mywine/dlls/commdlg/filedlg16.c	2004-06-02 16:03:23.000000000 +0200
@@ -300,7 +300,7 @@
     HCURSOR             hCursorWait, oldCursor;
 
     TRACE("Trying to change to %s\n", debugstr_w(newPath));
-    if  ( !SetCurrentDirectoryW( newPath ))
+    if  ( newPath[0] && !SetCurrentDirectoryW( newPath ))
         return FALSE;
     lstrcpynW(buffer, newPath, sizeof(buffer)/sizeof(WCHAR));