Disable timestamp correction for logs

Because GlusterFS logs timestamps as UTC [1].

[1] http://lists.gluster.org/pipermail/gluster-users/2014-November/019673.html

Change-Id: I486e4d5082f5d5187e984e282d19d5e87da09df3
diff --git a/glusterfs/meta/heka.yml b/glusterfs/meta/heka.yml
index e50cd45..b1c8f34 100644
--- a/glusterfs/meta/heka.yml
+++ b/glusterfs/meta/heka.yml
@@ -9,7 +9,8 @@
       engine: sandbox
       module_file: /usr/share/lma_collector/decoders/glusterfs.lua
       module_dir: /usr/share/lma_collector/common;/usr/share/heka/lua_modules
-      adjust_timezone: true
+      # GlusterFS logs are always UTC
+      adjust_timezone: false
   input:
 {%- if server_enabled %}
     glusterd: