[issue16638] support multi-line docstring signatures in IDLE calltips

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

The patch is synchronized with tip.

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versions:  -Python 3.2
Added file: http://bugs.python.org/file33059/idle_calltips_multiline_4.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16638>
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