doc: fix the description of 'close' event

MylesBorins · MylesBorins · commit 31e4f2b6e879 · 2017-10-12T01:01:36.000-04:00
PR-URL: #15800 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Timothy Gu <timothygu99@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
diff --git a/doc/api/fs.md b/doc/api/fs.md
@@ -182,7 +182,7 @@ added: v0.1.93
 
 * `fd` {integer} Integer file descriptor used by the ReadStream.
 
-Emitted when the ReadStream's file is opened.
+Emitted when the `ReadStream`'s underlying file descriptor has been closed.
 
 ### readStream.bytesRead
 <!-- YAML
@@ -296,7 +296,7 @@ added: v0.1.93
 
 * `fd` {integer} Integer file descriptor used by the WriteStream.
 
-Emitted when the WriteStream's file is opened.
+Emitted when the `WriteStream`'s underlying file descriptor has been closed.
 
 ### writeStream.bytesWritten
 <!-- YAML
