diff -r ef0373b55136 -r 758a864f9613 src/gui/widgets/qmainwindowlayout.cpp
--- a/src/gui/widgets/qmainwindowlayout.cpp	Fri Sep 17 08:34:18 2010 +0300
+++ b/src/gui/widgets/qmainwindowlayout.cpp	Mon Oct 04 01:19:32 2010 +0300
@@ -943,7 +943,7 @@
 #ifdef Q_WS_MAC
     if (layoutState.mainWindow->unifiedTitleAndToolBarOnMac()) {
         // If we hit this case, someone has pressed the "toolbar button" which will
-        // toggle the unified toolbar visiblity, because that's what the user wants.
+        // toggle the unified toolbar visibility, because that's what the user wants.
         // We might be in a situation where someone has hidden all the toolbars
         // beforehand (maybe in construction), but now they've hit this button and
         // and are expecting the items to show. What do we do?