json-streamer: make sure to reset token_size after emitting a token list

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/json-streamer.h b/json-streamer.h
index 09f3bd7..f09bc4d 100644
--- a/json-streamer.h
+++ b/json-streamer.h
@@ -24,6 +24,7 @@
     int brace_count;
     int bracket_count;
     QList *tokens;
+    uint64_t token_size;
 } JSONMessageParser;
 
 void json_message_parser_init(JSONMessageParser *parser,