Merged revisions 68451 via svnmerge from

Merged revisions 68451 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r68451 | antoine.pitrou | 2009-01-09 19:53:14 +0100 (ven., 09 janv. 2009) | 6 lines

  Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line
  flag to work properly. Furthermore, when specifying -u, the text stdout
  and stderr streams have line-by-line buffering enabled (the default being
  to buffer arbitrary chunks of data). Patch by Victor Stinner, test by me.
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