face: When there are no more events to process, pausing transport instead of closing it

Change-Id: I12ad55c6ef3b6b3fce4a5b3c679eb0c6dc3cfa07
Refs: #1314
diff --git a/src/face.hpp b/src/face.hpp
index 7e14ffd..fcd9bd0 100644
--- a/src/face.hpp
+++ b/src/face.hpp
@@ -220,7 +220,7 @@
   asyncUnsetInterestFilter(const RegisteredPrefixId* registeredPrefixId);
 
   void
-  finalizeUnsertInterestFilter(RegisteredPrefixTable::iterator item);
+  finalizeUnsetInterestFilter(RegisteredPrefixTable::iterator item);
   
   void 
   onReceiveElement(const Block& wire);