[ruby/logger] Say that logger requires ruby >= 2.3

Since it uses `&.`, it can't be used on older rubies https://github.com/ruby/logger/commit/b872f90ab9
2019-01-17 09:59:55 -08:00 · 2019-01-17 09:59:55 -08:00 · 227eae79ac
commit 227eae79ac
parent b9ba07a05c
1 changed files with 2 additions and 0 deletions
--- a/lib/logger.gemspec
+++ b/lib/logger.gemspec
@ -20,6 +20,8 @@ Gem::Specification.new do |spec|
  spec.bindir        = "exe"
  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ["lib"]
+  
+  spec.required_ruby_version = ">= 2.3.0

  spec.add_development_dependency "bundler", ">= 0"
  spec.add_development_dependency "rake", "~> 10.0"