Fix concurrency issue with multiline codec and other grok-based plugins#75

edmocosta wants to merge 2 commits intologstash-plugins:mainlogstash-plugins/logstash-codec-multiline:mainfrom

edmocosta:fix-grok-conc-issueedmocosta/logstash-codec-multiline:fix-grok-conc-issueCopy head branch name to clipboard