Gemfile in recursive-open-struct-0.1.0 vs Gemfile in recursive-open-struct-0.2.0

@@ -1,13 +1,14 @@
-source "http://rubygems.org"
+source 'http://rubygems.org'
+
 # Add dependencies required to use your gem here.
 # Example:
 #   gem "activesupport", ">= 2.3.5"
 
 # Add dependencies to develop your gem here.
 # Include everything needed to run rake, tests, features, etc.
 group :development do
-  gem "rspec"    #, "~> 2.3.0"
-  gem "bundler"  #, "~> 1.0.0"
-  gem "jeweler"  #, "~> 1.6.0"
-  gem "rcov"     #, ">= 0"
+  gem 'rspec'    #, "~> 2.3.0"
+  gem 'bundler'  #, "~> 1.0.0"
+  gem 'jeweler'  #, "~> 1.6.0"
+  gem 'rcov'     #, ">= 0"
 end