[PATCH] Two external command patches for 0.0.5

[Michael Ellerman]

Hi Martin,

These are two of the patches I thought should go in for 0.0.5. The first makes 
options with '-' in them work with external commands, and the other just does 
some better error checking.

cheers

-- 
Michael Ellerman
IBM OzLabs

email: michael:ellerman.id.au
inmsg: mpe:jabber.org
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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