Inputs are non-blocking and output are blocking.

This fix an issue on Debian which does not happen on Mac OS X.
Apparently, outputs are always blocking on Mac OS X which explains why
the bug has not been revealed so far.
[auto] Merge from Console

    • #f840f77 — Inputs are non-blocking and output are blocking. (Ivan Enderlin, 2014-04-03)

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Merge branch 'master' of /var/lib/git/repositories/Library/Console