add Symbol#<=> so that sorting keys won't chokegenerator-injection-removal

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/plist/generator.rb b/lib/plist/generator.rb
index 9c88928..90bfc8d 100644
--- a/lib/plist/generator.rb
+++ b/lib/plist/generator.rb
@@ -201,6 +201,13 @@ module Plist
   end
 end
 
+# we need to add this so sorting hash keys works properly
+class Symbol #:nodoc:
+  def <=> (other)
+    self.to_s <=> other.to_s
+  end
+end
+
 class Array #:nodoc:
   include Plist::Emit
 end