Fixing onos-buck

Change-Id: Ibb3e60d273a276b3e86302fd1c915881b8615629
diff --git a/tools/build/onos-buck b/tools/build/onos-buck
index cf896bb..9258dd9 100755
--- a/tools/build/onos-buck
+++ b/tools/build/onos-buck
@@ -35,4 +35,4 @@
 popd > /dev/null
 
 # Finally, run the Buck command...
-eval $ONOS_ROOT/bin/buck $*
+$ONOS_ROOT/bin/buck "$@"