jenkinsci/email-ext-plugin — pull request #40 by sarowe (2012-06-03 04:09:52+00:00)
Title: Add new content token BUILD_LOG_MULTILINE_REGEX, which allows regexes to match line terminators in build logs (in addition to all other characters), by matching against the full content of the build log.

See https://issues.jenkins-ci.org/browse/JENKINS-14000