fix returncode of tns_outbuf_itoa

README.rst

@@ -6,7 +6,7 @@ tnetstring:  data serialization using typed netstrings
 
 This is a data serialization library. It's a lot like JSON but it uses a
 new syntax called "typed netstrings" that Zed has proposed for use in the
-Mongrel2 webserver.  It's designed to be simpler and easier to implement
+the Mongrel2 webserver.  It's designed to be simpler and easier to implement
 than JSON, with a happy consequence of also being faster.
 
 An ordinary netstring is a blob of data prefixed with its length and postfixed
@@ -23,9 +23,6 @@ And here's a list mixing integers and bools::
 
     19:5:12345#4:true!1:0#]
 
-Also, since the ``,`` type tag represents a string, every valid netstring is a
-valid typed netstring!
-
 Simple enough?  This module gives you the following functions:
 
     :dumps:   dump an object as a tnetstring to a string

tnetstring/tns_core.c

@@ -400,6 +400,7 @@ tns_outbuf_itoa(size_t n, tns_outbuf *outbuf)
       }
       n = n / 10;
   } while(n > 0);
+  return 0;
 }