Bump gitiles-servlet to 0.1-6

Change-Id: I9c0fe16c743ff40d7a5d05fce0cde50c8a6c9782

BUCK

diff --git a/BUCK b/BUCK
index 79d97a8..027f2d4 100644
--- a/BUCK
+++ b/BUCK
@@ -50,8 +50,8 @@
 
 maven_jar(
   name = 'gitiles-servlet',
-  id = 'com.google.gitiles:gitiles-servlet:0.1-5',
-  sha1 = '228ba3c781135d28a8c7f4fd401cb622f71e536c',
+  id = 'com.google.gitiles:gitiles-servlet:0.1-6',
+  sha1 = '233fbe1315205861ac1adc3d77a3d5037f97fbaa',
   deps = [':prettify'],
   license = 'Apache2.0',
   repository = GERRIT,