Get rid of ERB warning for Ruby 2.6+ #2430
Merged
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Which issue(s) this PR fixes: None
What this PR does / why we need it: I found lots of
ERB.new
warnings (ruby/ruby@cc777d09f44) in https://travis-ci.org/fluent/fluentd/jobs/539499703 and I thought it'd be annoying.Docs Changes: None
Release Note: Suppress deprecation warnings of ERB for Ruby 2.6+