github release (golang mia) debugging.

jjb/shell/github-release.sh
---------------------------
  o Temporarily disable exit-on-failure within displayCommand().
  o Allow progression toward manifestation of the original failure.
  o Shellcheck cleanups.

jjb/verify/bbsim.yaml
---------------------
  o Remove v2.9 & v2.10 job placeholders, must have misheard the request
    earlier because the need now is only for v2.11 views.

packer/provision/basebuild.sh
-----------------------------
  o shellcheck: quote $(go env GOPATH) to prevent word/path splitting.

makefiles/
----------
  o Added library makefiles/ subdirectory to support more lint targets.
  o Makefile proper will need to be updated.

Change-Id: Icc766b90ffe798fe12c0376787f2298a68babbd4
diff --git a/makefiles/lint/include.mk b/makefiles/lint/include.mk
new file mode 100644
index 0000000..bed7149
--- /dev/null
+++ b/makefiles/lint/include.mk
@@ -0,0 +1,28 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+# -----------------------------------------------------------------------
+
+help::
+	@echo
+	@echo "[LINT]"
+
+include $(MAKEDIR)/lint/json.mk
+# include $(MAKEDIR)/lint/python.mk
+# include $(MAKEDIR)/lint/robot.mk
+include $(MAKEDIR)/lint/shell.mk
+include $(MAKEDIR)/lint/yaml.mk
+
+# [EOF]