Update Log related comments in LocalConsensus
Update Log related comments in LocalConsensus

LocalConsensus still has some pre-group-commit comments that no
longer reflect what is happening.

Change-Id: I7b8d129a9f089ea9d9a5edb26b2bd11fa9e328a5
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1829
Tested-by: jenkins
Reviewed-by: Todd Lipcon <2c763d726a8c2f6afda9be7e0e56a2caa6bb5e6b@cloudera.com>

EvilMcJerkface/kudu,cloudera/kudu,cloudera/kudu,InspurUSA/kudu,andrwng/kudu,helifu/kudu,helifu/kudu,InspurUSA/kudu,helifu/kudu,InspurUSA/kudu,InspurUSA/kudu,andrwng/kudu,cloudera/kudu,andrwng/kudu,helifu/kudu,cloudera/kudu,InspurUSA/kudu,andrwng/kudu,andrwng/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,andrwng/kudu,cloudera/kudu,InspurUSA/kudu,andrwng/kudu,helifu/kudu,helifu/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,helifu/kudu,helifu/kudu,cloudera/kudu,cloudera/kudu,andrwng/kudu,andrwng/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,cloudera/kudu,cloudera/kudu,EvilMcJerkface/kudu,helifu/kudu