fix comments

Change-Id: I8312c8404edafd6a3807d02abe1b578b33479ccf
diff --git a/metronetwork/Makefile b/metronetwork/Makefile
index d56ff74..5cdf66c 100644
--- a/metronetwork/Makefile
+++ b/metronetwork/Makefile
@@ -1,4 +1,4 @@
-# frontend/Makefile
+# metronetwork/Makefile
 
 CONFIG_DIR         := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 COMMON_DIR         := $(abspath ../common )