VOL-3978 - update to go 1.16.3

- lint required re-format of "generaged" files
- tidied up go.mod

Change-Id: I8fbab94b679061a5e9ba05f95a33b2bb4ca9edc4
diff --git a/generated/olt-g.go b/generated/olt-g.go
index 9f91f49..d3d3c7d 100644
--- a/generated/olt-g.go
+++ b/generated/olt-g.go
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- /*
+/*
  * NOTE: This file was generated, manual edits will be overwritten!
  *
  * Generated by 'goCodeGenerator.py':