doc: remove an unused arg in process.stdin.

The argument of process.stdin's readable event handler is not used.

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/api/process.markdown b/doc/api/process.markdown
index dafcd23bd..68f15c2fb 100644
--- a/doc/api/process.markdown
+++ b/doc/api/process.markdown
@@ -170,7 +170,7 @@ Example of opening standard input and listening for both events:
 
     process.stdin.setEncoding('utf8');
 
-    process.stdin.on('readable', function(chunk) {
+    process.stdin.on('readable', function() {
       var chunk = process.stdin.read();
       if (chunk !== null) {
         process.stdout.write('data: ' + chunk);