boost the get leader timeout a bit

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1546679 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5516: wait a moment before trying to Sync

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1546683 13f79535-47bb-0310-9956-ffa450edef68