Fixing onos-run-karaf not to blitz /tmp/onos-*.tar.gz

Change-Id: I5a96d79f597b0d5542ed276a9c786b061c2bd102
diff --git a/tools/package/onos-run-karaf b/tools/package/onos-run-karaf
index 7c9643f..e18e437 100755
--- a/tools/package/onos-run-karaf
+++ b/tools/package/onos-run-karaf
@@ -13,7 +13,7 @@
 set -e
 
 # Blitz previously unrolled onos- directory
-rm -fr onos-*
+rm -fr onos-*/
 
 # Unroll new image from the specified tar file
 [ -f $ONOS_TAR ] && tar zxf $ONOS_TAR