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 2009-05-05  Donal K. Fellows  <dkf@users.sf.net>
 
+	* doc/MainWin.3 (Tk_GetNumMainWindows): [Bug 487220]: Clarified that
+	this function works per-thread, not per-process.
+
 	* doc/canvas.n (scale): [Bug 1832015]: Clarified that [$c scale] only
 	affects item coordinates.