view .arcconfig @ 36832:6bdea0efdab5

util: forward __bool__()/__nonzero__() on fileobjectproxy

In trying to debug the Windows process hang in D2720, I changed the stderr pipe
to the peer to be os.devnull instead.  That caused sshpeer._cleanuppipes()[1] to
explode, complaining NoneType has no __iter__ attribute, even though the
previous line checked for None.

[1] https://www.mercurial-scm.org/repo/hg/file/b434965f984e/mercurial/sshpeer.py#l133

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