Don't allocate space for text when nMaxTextRows = 0.

dlls/comctl32/toolbar.c

diff --git a/dlls/comctl32/toolbar.c b/dlls/comctl32/toolbar.c
index 6d010d2..3e1fa92 100644
--- a/dlls/comctl32/toolbar.c
+++ b/dlls/comctl32/toolbar.c
@@ -1120,7 +1120,8 @@
     lpSize->cx = 0;
     lpSize->cy = 0;
 
-    if (!(btnPtr->fsState & TBSTATE_HIDDEN) &&
+    if (infoPtr->nMaxTextRows > 0 &&
+        !(btnPtr->fsState & TBSTATE_HIDDEN) &&
         (!(infoPtr->dwExStyle & TBSTYLE_EX_MIXEDBUTTONS) ||
         (btnPtr->fsStyle & BTNS_SHOWTEXT)) )
     {