Fix enter/leave logging confusion

In a few places, misleading messages may confuse log readers, e.g.,
by indicating that a function is being entered when it is actually
being left.

Signed-off-by: Roger Luethi <roger.luethi@bisdn.de>
Change-Id: Ib8cc302574e6c49f2a0a60528b85d2310b31b8b5
diff --git a/vars/createKubernetesCluster.groovy b/vars/createKubernetesCluster.groovy
index a95d084..f31cd1e 100644
--- a/vars/createKubernetesCluster.groovy
+++ b/vars/createKubernetesCluster.groovy
@@ -166,7 +166,7 @@
       make -C "$WORKSPACE/voltha-system-tests" KAIL_PATH="$WORKSPACE/bin" kail
 """)
 
-    enter('leave')
+    leave('main')
     return
 }