jenkins.sh: fix echo string to say osmo-sgsn, not msc

Change-Id: I3e9a1503de55e939179c032c17df53d27bdddd51
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index 07173cc..dc1a1a5 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -39,7 +39,7 @@
 echo
 echo
 echo
-echo " =============================== osmo-msc ==============================="
+echo " =============================== osmo-sgsn ==============================="
 echo
 set -x