module searching terminates unexpectedly at certain directory

[shankerwangmiao]

suppose the source tree is

/path/to/root
         |
         +--sub
         |  |
         |  +--main.js
         |
         +--node_modules
            |
            +--aaa
               |
               +--index.js

and main.js is

require('aaa');
console.log('sub/main.js');

while index.js is

console.log("this is aaa");

and below is the issue

% pwd
/path/to/root
% continuation sub/main.js
module.js:340
    throw err;
          ^
Error: Cannot find module 'aaa'
  at Function.Module._resolveFilename (module.js:338:15)
  at Function.Module._load (module.js:280:25)
  at Module.require (module.js:364:17)
  at require (module.js:380:17)
  at Object.<anonymous> (sub/main.js:1:69)
  at Module._compile (module.js:456:26)
  at executeTopModule (/usr/local/lib/node_modules/continuation/lib/cli.js:131:14)
  at Object.exports.main (/usr/local/lib/node_modules/continuation/lib/cli.js:86:7)
  at Object.<anonymous> (/usr/local/lib/node_modules/continuation/bin/continuation:3:5)
  at Module._compile (module.js:456:26)
  at Object.Module._extensions..js (module.js:474:10)
  at Module.load (module.js:356:32)
  at Function.Module._load (module.js:312:12)
  at Function.Module.runMain (module.js:497:10)
  at startup (node.js:119:16)
  at node.js:906:3
% continuation ./sub/main.js
this is aaa
sub/main.js
% continuation --version 
0.1.5
% node -v
v0.10.32

[BYVoid]

Thanks fixed.