Fixed javadoc for toString() since we do not output valid Json for strings at the moment. 
Fixed javadoc for toString() since we do not output valid Json for strings at the moment. 

git-svn-id: 7b8be7b2f8bf58e8147c910303b95fa2b8d9948f@402 2534bb62-2c4b-0410-85e8-b5006b95c4ae

mintern/gson