Fix typo in adb commandline help
Android developers are not expected to have PDP-11s.
diff --git a/docs/html/guide/developing/tools/adb.jd b/docs/html/guide/developing/tools/adb.jd
index b111047..e8c726f 100644
--- a/docs/html/guide/developing/tools/adb.jd
+++ b/docs/html/guide/developing/tools/adb.jd
@@ -313,7 +313,7 @@
<li><code><tty></code> — the tty for PPP stream. For example <code>dev:/dev/omap_csmi_ttyl</code>. </li>
<li><code>[parm]... </code> &mdash zero or more PPP/PPPD options, such as <code>defaultroute</code>, <code>local</code>, <code>notty</code>, etc.</li></ul>
-<p>Note that you should not automatically start a PDP connection. </p></td>
+<p>Note that you should not automatically start a PPP connection. </p></td>
<td></td>
</tr>