tests: this timeout needs to be even higher for apache freebsd, and this test currently requires 4 shards because I have seen shard1 get one node and shard2 get two

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1454929 13f79535-47bb-0310-9956-ffa450edef68