[docs] [issue30376] Curses documentation refers to incorrect type

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


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stage:  -> needs patch
type:  -> behavior
versions:  -Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30376>
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