Spelling and Whitespace Corrections (#1853)

Correct a couple of spelling mistakes and remove whitespace from the end
of the lines for the sumologic-fluentd chart.

stable/sumologic-fluentd/README.md

@@ -108,7 +108,7 @@ $ helm install --name my-release -f values.yaml stable/sumologic-fluentd
 
 By default, the fluentd position files will be written to an ephemeral
 `emptyDir`. Each time the pods die, new position files will be created, all of
-the logs in the cluster will be sent to sumologic again. To avoid unneccessary
+the logs in the cluster will be sent to sumologic again. To avoid unnecessary
 re-transmissions, pos directories can be maintained as a `hostPath`. Create a
 directory, on each of the nodes, and point `persistence.hostPath` at that
 directory.

stable/sumologic-fluentd/values.yaml

@@ -22,7 +22,7 @@ sumologic:
   ## Set the _sourceCategory metadata field in SumoLogic. (Default "%{namespace}/%{pod_name}")
   # sourceCategory:
 
-  ## Set the prefix, for _sourceCategory metadata. (Defualt nil)
+  ## Set the prefix, for _sourceCategory metadata. (Default nil)
   # sourceCategoryPrefix:
 
   ## Used to replace - with another character. (default /)
@@ -36,7 +36,7 @@ sumologic:
   # kubernetesMeta: true
 
   ## Files matching this pattern will be ignored by the in_tail plugin, and will
-  ## not be sent to Kubernetes or Sumo Logic. This can be a comma seperated list.
+  ## not be sent to Kubernetes or Sumo Logic. This can be a comma separated list.
   ## ref: http://docs.fluentd.org/v0.12/articles/in_tail#excludepath
   # excludePath: