docs: Fixing doxygen warnings

Change-Id: Ic85f86f4de8224e2fa5d1c41f6afb0f367af5b37
Refs: #3210
diff --git a/daemon/fw/best-route-strategy2.cpp b/daemon/fw/best-route-strategy2.cpp
index e0e31dc..f582358 100644
--- a/daemon/fw/best-route-strategy2.cpp
+++ b/daemon/fw/best-route-strategy2.cpp
@@ -40,6 +40,8 @@
 }
 
 /** \brief determines whether a NextHop is eligible
+ *  \param pitEntry PIT entry
+ *  \param nexthop next hop
  *  \param currentDownstream incoming FaceId of current Interest
  *  \param wantUnused if true, NextHop must not have unexpired OutRecord
  *  \param now time::steady_clock::now(), ignored if !wantUnused