(maint) Keep it simple

Single quote dependency names and sort them for maintainability.

puppet.gemspec

@@ -20,16 +20,16 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
   spec.summary = "Puppet, an automated configuration management tool"
   spec.specification_version = 4
-  spec.add_runtime_dependency(%q<facter>, [">= 4.3.0", "< 5"])
-  spec.add_runtime_dependency(%q<semantic_puppet>, "~> 1.0")
-  spec.add_runtime_dependency(%q<fast_gettext>, ">= 2.1", "< 4")
-  spec.add_runtime_dependency(%q<locale>, "~> 2.1")
-  spec.add_runtime_dependency(%q<multi_json>, "~> 1.13")
-  spec.add_runtime_dependency(%q<puppet-resource_api>, "~> 1.5")
-  spec.add_runtime_dependency(%q<concurrent-ruby>, "~> 1.0")
-  spec.add_runtime_dependency(%q<deep_merge>, "~> 1.0")
-  spec.add_runtime_dependency(%q<scanf>, "~> 1.0")
-  spec.add_runtime_dependency(%q<getoptlong>, "~> 0.2.0")
+  spec.add_runtime_dependency('concurrent-ruby', '~> 1.0')
+  spec.add_runtime_dependency('deep_merge', '~> 1.0')
+  spec.add_runtime_dependency('facter', ['>= 4.3.0', '< 5'])
+  spec.add_runtime_dependency('fast_gettext', '>= 2.1', '< 4')
+  spec.add_runtime_dependency('getoptlong', '~> 0.2.0')
+  spec.add_runtime_dependency('locale', '~> 2.1')
+  spec.add_runtime_dependency('multi_json', '~> 1.13')
+  spec.add_runtime_dependency('puppet-resource_api', '~> 1.5')
+  spec.add_runtime_dependency('scanf', '~> 1.0')
+  spec.add_runtime_dependency('semantic_puppet', '~> 1.0')
 
   platform = spec.platform.to_s
   if platform == 'universal-darwin'