fix some typos

Change-Id: I4f2c2089a79c1e97760b789e54b18d1cda00c193
Reviewed-on: https://chromium-review.googlesource.com/455238
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/hterm/js/hterm_options.js b/hterm/js/hterm_options.js
index e647f3e..0afadc6 100644
--- a/hterm/js/hterm_options.js
+++ b/hterm/js/hterm_options.js
@@ -19,7 +19,7 @@
  * constructor.
  *
  * The defaults are as defined in http://www.vt100.net/docs/vt510-rm/DECSTR
- * except that we enable autowrap (wraparound) by defaut since that seems to
+ * except that we enable autowrap (wraparound) by default since that seems to
  * be what xterm does.
  *
  * @param {hterm.Options=} opt_copy Optional instance to copy.