[PATCH] fix dbpmda agent execvp use

[Nathan Scott <nscott@xxxxxxxxxx>]

Hi guys,

When using dbpmda with a new agent thats being invoked with no arguments
I'm hitting a problem where the execvp(2) syscall is not being made with
a NULL terminated argv.  This causes spurious bogus arguments to be on
the agents command line, and messes up their argv/argc handling.

This is fixed by the attached patch.  It looks like a coding oversight,
as this extra addarglist(NULL) _is_ there for the non-short-circuit case
further down in doargs().

cheers.

-- 
Nathan

fix-dbpmda-args
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