Test: adjust for devutils 2.0 compat

Author: kares

logstash-input-file.gemspec

@@ -34,7 +34,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'logstash-codec-multiline', ['~> 3.0']
 
   s.add_development_dependency 'stud', ['~> 0.0.19']
-  s.add_development_dependency 'logstash-devutils', '~> 1.3'
+  s.add_development_dependency 'logstash-devutils'
   s.add_development_dependency 'logstash-codec-json'
   s.add_development_dependency 'rspec-sequencing'
   s.add_development_dependency "rspec-wait"

spec/inputs/file_tail_spec.rb

@@ -1,6 +1,7 @@
 # encoding: utf-8
 
 require "helpers/spec_helper"
+require "logstash/devutils/rspec/shared_examples"
 require "logstash/inputs/file"
 
 require "tempfile"