[issue1663329] subprocess/popen close_fds perform poor if SC_OPEN_MAX is hi

[Mike Klaas]

Mike Klaas added the comment:

Updated patch, now with documentation and test.  Patch is against 
2.6trunk, but probably will apply against 3.0 as well

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components: +Library (Lib) -Interpreter Core
versions: +Python 2.6 -Python 2.5
Added file: http://bugs.python.org/file9070/posix_closerange.patch

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