Fix a TRACE.

diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c
index 1c1caec..41147d3 100644
--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -1203,7 +1203,7 @@
     TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
 	  (tvItem->mask & TVIF_TEXT)
 	  ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
-	     : debugstr_w(tvItem->pszText))
+	     : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
 	  : "<no label>");
 
     newItem = TREEVIEW_AllocateItem(infoPtr);