Normalize MAKEDIR, ONF_MAKEDIR and ONF_MAKE

Change-Id: I3908c0738dbbed180d62dc0f4ba656226035ba5a
diff --git a/makefiles/virtualenv.mk b/makefiles/virtualenv.mk
index c6904da..93eb29d 100644
--- a/makefiles/virtualenv.mk
+++ b/makefiles/virtualenv.mk
@@ -13,7 +13,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
 # https://gerrit.opencord.org/plugins/gitiles/onf-make
 # ONF.makefile.version = 1.0
 # -----------------------------------------------------------------------