Allow double quotes around RAILS_GEM_VERSION also. Closes #10443 [James Cox]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8358 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/environments/boot.rb

@@ -93,7 +93,7 @@ def load_rubygems
       end
 
       def parse_gem_version(text)
-        $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*'([!~<>=]*\s*[\d.]+)'/
+        $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/
       end
 
       private

railties/test/boot_test.rb

@@ -128,6 +128,11 @@ def test_should_return_nil_if_no_lines_are_passed
     assert_equal nil, parse(nil)
   end
 
+  def test_should_accept_either_single_or_double_quotes
+    assert_equal "1.2.3", parse("RAILS_GEM_VERSION = '1.2.3'")
+    assert_equal "1.2.3", parse('RAILS_GEM_VERSION = "1.2.3"')
+  end
+
   def test_should_return_nil_if_no_lines_match
     assert_equal nil, parse('nothing matches on this line\nor on this line')
   end