altos: Provide for a pre-filter on commands
authorKeith Packard <keithp@keithp.com>
Fri, 1 Apr 2011 21:07:23 +0000 (14:07 -0700)
committerKeith Packard <keithp@keithp.com>
Fri, 1 Apr 2011 21:07:23 +0000 (14:07 -0700)
This allows for external code to see each command line before it is
processed and potentially skip it.

Signed-off-by: Keith Packard <keithp@keithp.com>

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