Corrected a typo

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@48551 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/tbar95.cpp

@@ -1098,7 +1098,7 @@ bool wxToolBar::Realize()
     // are incorrectly drawn, by forcing the background to a specific colour.
     int majorVersion, minorVersion;
     wxGetOsVersion(& majorVersion, & minorVersion);
-    if (majorVersion < 6 && hasControls && !!UseBgCol())
+    if (majorVersion < 6 && hasControls && !UseBgCol())
         SetBackgroundColour(GetBackgroundColour());
 
     return true;