shlexec: fix return value

[Huw D M Davies]

        Huw Davies <huw at codeweavers.com>
        DdeClientTransaction returns non-zero on error
-- 
Huw Davies
huw at codeweavers.com
Index: dlls/shell32/shlexec.c
===================================================================
RCS file: /home/wine/wine/dlls/shell32/shlexec.c,v
retrieving revision 1.44
diff -u -r1.44 shlexec.c
--- dlls/shell32/shlexec.c	13 Apr 2004 00:18:45 -0000	1.44
+++ dlls/shell32/shlexec.c	22 Apr 2004 14:34:38 -0000
@@ -801,7 +801,7 @@
     TRACE("%s %s => %s\n", debugstr_w(exec), debugstr_w(lpFile), debugstr_w(res));
 
     ret = (DdeClientTransaction((LPBYTE)res, (strlenW(res) + 1) * sizeof(WCHAR), hConv, 0L, 0,
-                                XTYP_EXECUTE, 10000, &tid) != DMLERR_NO_ERROR) ? 31 : 33;
+                                XTYP_EXECUTE, 10000, &tid) == 0) ? 31 : 33;
     DdeDisconnect(hConv);
 
  error: