Fix checkstyle warnings in config-manager

Change-Id: Id8551489d678ebb35908f052a571303fc6c68999
Signed-off-by: Marian Dubai <mdubai@cisco.com>
Fix checkstyle warnings in config-persister-directory-xml-adapter

Change-Id: I9f6a57a22b470359c7eb038e77736376cd2ac3ee
Signed-off-by: Marian Dubai <mdubai@cisco.com>
Fix checkstyle warnings in config-persister-feature-adapter

Change-Id: If961a029b48d85b58ca10b9b71f5fc29d41dbe9c
Signed-off-by: Marian Dubai <mdubai@cisco.com>
Fix checkstyle warnings in config-persister-file-xml-adapter.

Change-Id: Ia7cd7eda114225cfc35ec301535d5aaec0fa8794
Signed-off-by: Marian Dubai <mdubai@cisco.com>
Merge changes Ia7cd7eda,If961a029,I9f6a57a2,Id8551489

* changes:
  Fix checkstyle warnings in config-persister-file-xml-adapter.
  Fix checkstyle warnings in config-persister-feature-adapter
  Fix checkstyle warnings in config-persister-directory-xml-adapter
  Fix checkstyle warnings in config-manager