[IPC] Convert specs to pretty JSON

lib/cocoapods/command/inter_process_communication.rb

@@ -28,8 +28,9 @@ module Pod
         end
 
         def run
+          require 'json'
           spec = Specification.from_file(@path)
-          output_pipe.puts spec.to_json
+          output_pipe.puts(JSON.pretty_generate(spec))
         end
       end
 

spec/functional/command/inter_process_communication_spec.rb

@@ -15,9 +15,9 @@ module Pod
 
       it 'converts a podspec to JSON and prints it to STDOUT' do
         out = run_command('ipc', 'spec', fixture('banana-lib/BananaLib.podspec'))
-        out.should.match /"name":"BananaLib"/
-        out.should.match /"version":"1.0"/
-        out.should.match /"description":"Full of chunky bananas."/
+        out.should.match /"name": "BananaLib"/
+        out.should.match /"version": "1.0"/
+        out.should.match /"description": "Full of chunky bananas."/
       end
 
     end