Silence uninit var warnings for Search::Z3950

[Dan Scott]

* Evergreen rel_2_4 as of 2013-06-24

The debug logger blindly attempts to access list members that might not exist (if, for example, an event code was returned from the attempt to run do_service_search()), thus generating spurious log warnings. Instead, move the debug line to only generate output when we have actually created the list item in question.

We have approximately 800 of these warnings showing up in our logs on one average day of cataloguing.

See http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/dbs/z3950_log_warning for the fix (against rel_2_4).

[Mike Rylander (mrylander)]

Master and 2.4 updated. Thanks, Dan!