Upgrade gitiles-servlet to 0.2-2

Change-Id: I4737149b9a5c0f2046f04502c4794575bf610dcd
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 49c4fe0..af15a27 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -5,8 +5,8 @@
 def external_plugin_deps():
   maven_jar(
     name = 'gitiles_servlet',
-    artifact = 'com.google.gitiles:gitiles-servlet:0.2-1',
-    sha1 = '4b83471c65e110a08d99570fafcdaf5f59a0b9ce',
+    artifact = 'com.google.gitiles:gitiles-servlet:0.2-2',
+    sha1 = 'e581632a017d5811282b5ed87920bcdf26d727a8',
     repository = GERRIT,
   )