Aliased $OCX variables to the X number for onos and onos-log commands.

I.e. running "onos 1" is equivalent to running "onos $OC1".
"onos-log 2" is equivalent to "onos-log $OC2".

If the argument is not a number there should be no change to the behaviour
of the script (original invocations should still work as expected).

Will make this change for other commands in the future if there are no issues.

Change-Id: I7621cce9076c088d3bcb1aa4d6c8f8f8525823ca
diff --git a/tools/test/bin/onos b/tools/test/bin/onos
index 653b7f3c..a0c126c 100755
--- a/tools/test/bin/onos
+++ b/tools/test/bin/onos
@@ -5,8 +5,9 @@
 
 [ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
 . $ONOS_ROOT/tools/build/envDefaults
+. $ONOS_ROOT/tools/test/bin/find-node.sh
 
 [ "$1" = "-w" ] && shift && onos-wait-for-start $1
 
-[ -n "$1" ] && OCI=$1 && shift
+[ -n "$1" ] && OCI=$(find_node $1) && shift
 client -h $OCI -u karaf "$@" 2>/dev/null