Merge pull request #59 from jsoref/close-callback-nop

provide callback to fix: The "listener" argument must be of type Func…

Author: runk

lib/cache.js

@@ -12,7 +12,7 @@ function Cache(opts) {
   this.opts.path = opts.path || path.join(__dirname, '/../cache');
 
   this.locks = {};
-
+  var nop = function() {};
 
   this.stat = function(fullpath) {
     if (!fs.existsSync(fullpath))
@@ -55,7 +55,7 @@ function Cache(opts) {
     var path = this.getPath(key),
       file = fs.createReadStream(path.full);
     file.on('finish', function() {
-      file.close();
+      file.close(nop);
     });
 
     return file;
@@ -75,7 +75,7 @@ function Cache(opts) {
     file.on('finish', function() {
       // release lock
       delete (locks[key]);
-      file.close();
+      file.close(nop);
     });
 
     return file;