Use linux-style sed option for VersionManager

Change-Id: I98c49b04e4f4902272449a4cc70e5c12875085a9
diff --git a/tools/build/onos-change-version b/tools/build/onos-change-version
index 3a05b95..3ce5557 100755
--- a/tools/build/onos-change-version
+++ b/tools/build/onos-change-version
@@ -34,7 +34,7 @@
 sed -i".VERBACK" -E "s/ONOS_POM_VERSION=.*\"/ONOS_POM_VERSION=\"$NEW_VERSION\"/" $ONOS_ROOT/tools/build/envDefaults
 
 # Augment fallback version in VersionManager
-sed -i "" -E "s/Version\.version\(\"[^\"]*\"\)/Version.version(\"$NEW_VERSION\")/" \
+sed -i".VERBACK" -E "s/Version\.version\(\"[^\"]*\"\)/Version.version(\"$NEW_VERSION\")/" \
    $ONOS_ROOT/core/net/src/main/java/org/onosproject/core/impl/VersionManager.java
 
 # Augment the version in archetypes tree.