Update checkstyle to version 6.19

Change-Id: I32787f2a5f4f4b17fd4cdcf9bd2eb3903dcecfff
diff --git a/lib/BUCK b/lib/BUCK
index 7fa1008..af101d8 100644
--- a/lib/BUCK
+++ b/lib/BUCK
@@ -1,4 +1,4 @@
-# ***** This file was auto-generated at Fri, 24 Mar 2017 18:02:30 GMT. Do not edit this file manually. *****
+# ***** This file was auto-generated at Thu, 30 Mar 2017 23:42:03 GMT. Do not edit this file manually. *****
 # ***** Use onos-lib-gen *****
 
 pass_thru_pom(
@@ -1031,10 +1031,10 @@
 
 remote_jar (
   name = 'checkstyle',
-  out = 'checkstyle-6.11.2.jar',
-  url = 'mvn:com.puppycrawl.tools:checkstyle:jar:6.11.2',
-  sha1 = '2705f014697ac0219de0bb2bfc33afb7ec6d22c6',
-  maven_coords = 'com.puppycrawl.tools:checkstyle:jar:NON-OSGI:6.11.2',
+  out = 'checkstyle-6.19.jar',
+  url = 'mvn:com.puppycrawl.tools:checkstyle:jar:6.19',
+  sha1 = 'df5c3a46239d66c623922992a98080ae7f6cc932',
+  maven_coords = 'com.puppycrawl.tools:checkstyle:jar:NON-OSGI:6.19',
   visibility = [ 'PUBLIC' ],
 )