[skip ci] add lowercase 'version' to s.files for case-sensitive filesystems

Author: alexcams

logstash-input-redis.gemspec

@@ -11,7 +11,7 @@ Gem::Specification.new do |s|
   s.require_paths = ["lib"]
 
   # Files
-  s.files = Dir["lib/**/*","spec/**/*","*.gemspec","*.md","CONTRIBUTORS","Gemfile","LICENSE","NOTICE.TXT", "vendor/jar-dependencies/**/*.jar", "vendor/jar-dependencies/**/*.rb", "VERSION", "docs/**/*"]
+  s.files = Dir["lib/**/*","spec/**/*","*.gemspec","*.md","CONTRIBUTORS","Gemfile","LICENSE","NOTICE.TXT", "vendor/jar-dependencies/**/*.jar", "vendor/jar-dependencies/**/*.rb", "VERSION", "version", "docs/**/*"]
 
   # Tests
   s.test_files = s.files.grep(%r{^(test|spec|features)/})