because we don't have any (matchmaker only).
- back end programs: for programs that do enumerations,
check for error returns and exit
(otherwise we'll get stuck forever if DB fails)
NOTE: In the course of researching this I came across a bug
in the transitioner: if there's a WU with more than 1000 results,
the enumeration will always return ERR_DB_NOT_FOUND,
and the transitioner won't ever do anything again.
Fixing this is a little tricky, so I'm not going to do it right now.
svn path=/trunk/boinc/; revision=16324
David Anderson