**breaking change** nlsr.conf: rename seq-dir as state-dir

update: conf file in seperate directory for runtime modification

refs:  #4823

Change-Id: I5378d831294814e382ad23a9e522d0b576180f20
diff --git a/src/lsdb.cpp b/src/lsdb.cpp
index e4b3912..4159c4f 100644
--- a/src/lsdb.cpp
+++ b/src/lsdb.cpp
@@ -55,7 +55,7 @@
   , m_lsaRefreshTime(ndn::time::seconds(m_confParam.getLsaRefreshTime()))
   , m_thisRouterPrefix(m_confParam.getRouterPrefix().toUri())
   , m_adjLsaBuildInterval(m_confParam.getAdjLsaBuildInterval())
-  , m_sequencingManager(m_confParam.getSeqFileDir(), m_confParam.getHyperbolicState())
+  , m_sequencingManager(m_confParam.getStateFileDir(), m_confParam.getHyperbolicState())
   , m_onNewLsaConnection(m_sync.onNewLsa->connect(
       [this] (const ndn::Name& updateName, uint64_t sequenceNumber) {
         ndn::Name lsaInterest{updateName};