Changed potentially misleading testcase names

test_broadcast.py: test_unixface -> test_broadcast
test_localhop.py: test_localhost_scope -> test_localhop
test_route_expiration.py: test_nrd -> test_route_expiration

refs #2937

Change-Id: I1dd22ab11342d3a3d6ea511e9c954dc3f354bb2f
diff --git a/test_broadcast/test_broadcast.py b/test_broadcast/test_broadcast.py
index da34c29..e830039 100644
--- a/test_broadcast/test_broadcast.py
+++ b/test_broadcast/test_broadcast.py
@@ -22,7 +22,7 @@
         print "**************************"
         os.chdir("..")
 
-    def test_unixface(self):
+    def test_broadcast(self):
         ret = subprocess.call(["./broadcast-test.sh"], shell=True)
         print "Test script return value:", ret
         errormsg = {