ndnmap-data-collector: Fix upstart config

Change-Id: Ib4453a3e783a77868c7ee3586b0c357ccf7f0afe
diff --git a/ndnmap-data-collector/debian/ndnmap-data-collector.service b/ndnmap-data-collector/debian/ndnmap-data-collector.service
index 2ffc978..000770e 100644
--- a/ndnmap-data-collector/debian/ndnmap-data-collector.service
+++ b/ndnmap-data-collector/debian/ndnmap-data-collector.service
@@ -9,7 +9,7 @@
 
 [Service]
 Environment=HOME=/var/lib/ndn/ndnmapDataCollector
-EnvironmentFile=-/etc/default/ndnmapDataCollectorClient
+EnvironmentFile=-/etc/default/ndnmap-data-collector
 User=ndn
 Group=ndn
 ExecStart=/usr/bin/ndnmapDataCollectorClient $FLAGS -p "$PREFIX"