Remove trailing whitespace.

Change-Id: I95534bb2b88eaf48f2329282041118cd034c812b
diff --git a/docs/hello-world.html b/docs/hello-world.html
index dbbaea6..7491a28 100644
--- a/docs/hello-world.html
+++ b/docs/hello-world.html
@@ -22,7 +22,7 @@
 % <font color="green">dx --dex --output=foo.jar Foo.class</font><br>
 % <font color="green">adb push foo.jar /sdcard</font><br>
 % <font color="green">adb shell dalvikvm -cp /sdcard/foo.jar Foo</font><br>
-Hello, world 
+Hello, world
 </code>
 </p><p>
 The <code>-cp</code> option sets the classpath.  The initial directory