repl: Add 'smalloc' to list of known modules

Author: isaacs

lib/repl.js

@@ -72,7 +72,7 @@ exports.writer = util.inspect;
 exports._builtinLibs = ['assert', 'buffer', 'child_process', 'cluster',
   'crypto', 'dgram', 'dns', 'domain', 'events', 'fs', 'http', 'https', 'net',
   'os', 'path', 'punycode', 'querystring', 'readline', 'stream',
-  'string_decoder', 'tls', 'tty', 'url', 'util', 'vm', 'zlib'];
+  'string_decoder', 'tls', 'tty', 'url', 'util', 'vm', 'zlib', 'smalloc'];
 
 
 function REPLServer(prompt, stream, eval_, useGlobal, ignoreUndefined) {