Blocked revisions 79596 via svnmerge

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  r79596 | eric.smith | 2010-04-02 07:30:56 -0500 (Fri, 02 Apr 2010) | 1 line

  Issue 7994: Make object.__format__ with a non-empty format string a PendingDecprecationWarning. Still need to remove uses of this from various tests.
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