Item12384: Avoid uninitialized variable

Found this stashed.  I don't see a specific task calling out this
specific error, but seems to make sense, so checking it in.

git-svn-id: http://svn.foswiki.org/branches/Release01x01/core@17230 0b4bb1d4-4e5a-0410-9cc4-b2b747904278