Merge pull request #733 from basvandijk/fix-build_finished-notifications

Separate the build IDs in the build_finished payload with tabs

src/hydra-queue-runner/hydra-queue-runner.cc

@@ -470,7 +470,7 @@ void State::notifyBuildFinished(pqxx::work & txn, BuildID buildId,
 {
     auto payload = fmt("%d", buildId);
     for (auto & d : dependentIds)
-        payload += fmt("%d ", d);
+        payload += fmt("\t%d", d);
     // FIXME: apparently parameterized() doesn't support NOTIFY.
     txn.exec(fmt("notify build_finished, '%s'", payload));
 }