Fixes for 3 warnings

[Vincent Béron]

Changelog:
 - Removed res in PROPSHEET_Back as it wasn't used at all.
 - Added a debugstr_w() in 2 output messages in AddPrinterW.

Vincent
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diff -urN wine-orig/dlls/comctl32/propsheet.c wine-pas-compil?/dlls/comctl32/propsheet.c
--- wine-orig/dlls/comctl32/propsheet.c	Tue May 14 17:13:53 2002
+++ wine-pas-compil?/dlls/comctl32/propsheet.c	Mon May 27 13:24:01 2002
@@ -1310,7 +1310,6 @@
  */
 static BOOL PROPSHEET_Back(HWND hwndDlg)
 {
-  BOOL res;
   PSHNOTIFY psn;
   HWND hwndPage;
   PropSheetInfo* psInfo = (PropSheetInfo*) GetPropW(hwndDlg,
diff -urN wine-orig/dlls/winspool/info.c wine-pas-compil?/dlls/winspool/info.c
--- wine-orig/dlls/winspool/info.c	Thu May 23 16:36:46 2002
+++ wine-pas-compil?/dlls/winspool/info.c	Mon May 27 14:45:47 2002
@@ -1060,7 +1060,7 @@
      */
     size = DocumentPropertiesW(0, -1, pi->pPrinterName, NULL, NULL, 0);
     if(size < 0) {
-        FIXME("DocumentPropertiesW on printer '%s' fails\n", pi->pPrinterName);
+        FIXME("DocumentPropertiesW on printer '%s' fails\n", debugstr_w(pi->pPrinterName));
 	size = sizeof(DEVMODEW);
     }
     if(pi->pDevMode)
@@ -1069,7 +1069,7 @@
 	dmW = HeapAlloc(GetProcessHeap(), 0, size);
 	dmW->dmSize = size;
 	if (0>DocumentPropertiesW(0,-1,pi->pPrinterName,dmW,NULL,DM_OUT_BUFFER)) {
-	    ERR("DocumentPropertiesW on printer '%s' failed!\n", pi->pPrinterName);
+	    ERR("DocumentPropertiesW on printer '%s' failed!\n", debugstr_w(pi->pPrinterName));
 	    SetLastError(ERROR_UNKNOWN_PRINTER_DRIVER);
 	    return 0;
 	}