doc: fix typo in Buffer.prototype.fill()

cjihrig · cjihrig · commit 70f23ec9c0d6 · 2017-12-06T13:02:25.000-05:00
Refs: nodejs#17427 PR-URL: nodejs#17501 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
diff --git a/doc/api/buffer.md b/doc/api/buffer.md
@@ -1276,7 +1276,7 @@ const buf = Buffer.allocUnsafe(5);
 console.log(buf.fill('a'));
 // Prints: <Buffer aa aa aa aa aa>
 console.log(buf.fill('aazz', 'hex'));
-// Throws a exception.
+// Throws an exception.
 console.log(buf.fill('zz', 'hex'));
 ```
 
