Update logstash to 2.2.2

Author: gerardorochin

library/logstash

@@ -18,8 +18,8 @@
 2.1.3: git://github.com/docker-library/logstash@6640b3dc91110c65e30a715a07bfec00d1f32999 2.1
 2.1: git://github.com/docker-library/logstash@6640b3dc91110c65e30a715a07bfec00d1f32999 2.1
 
-2.2.1-1: git://github.com/docker-library/logstash@aa2e1c7fa0d9eb98974d0785db701a51643240c1 2.2
-2.2.1: git://github.com/docker-library/logstash@aa2e1c7fa0d9eb98974d0785db701a51643240c1 2.2
-2.2: git://github.com/docker-library/logstash@aa2e1c7fa0d9eb98974d0785db701a51643240c1 2.2
-2: git://github.com/docker-library/logstash@aa2e1c7fa0d9eb98974d0785db701a51643240c1 2.2
-latest: git://github.com/docker-library/logstash@aa2e1c7fa0d9eb98974d0785db701a51643240c1 2.2
+2.2.2-1: git://github.com/docker-library/logstash@242021957eed6d4fa8c6b4ee10bc07e705641e72 2.2
+2.2.2: git://github.com/docker-library/logstash@242021957eed6d4fa8c6b4ee10bc07e705641e72 2.2
+2.2: git://github.com/docker-library/logstash@242021957eed6d4fa8c6b4ee10bc07e705641e72 2.2
+2: git://github.com/docker-library/logstash@242021957eed6d4fa8c6b4ee10bc07e705641e72 2.2
+latest: git://github.com/docker-library/logstash@242021957eed6d4fa8c6b4ee10bc07e705641e72 2.2