Minor makefile edits

makefiles/consts.mk
-------------------
  o Fixed quote-{double,single} macros to use the correct values.

makefiles/include.mk
makefiles/lint/shell.mk
makefiles/virtualenv.mk
-----------------------
  o Inline a visual version string for quick sanity checking.

makefiles/lint/include.mk
makefiles/lint/license/
-------------------------
  o Check license agreements with the reuse command line tool.

Change-Id: I54b247805dc75b888ab5662e224261dabb01eab7
diff --git a/makefiles/consts.mk b/makefiles/consts.mk
index d6f71e8..c1306ac 100644
--- a/makefiles/consts.mk
+++ b/makefiles/consts.mk
@@ -17,6 +17,7 @@
 # SPDX-FileCopyrightText: 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
 # SPDX-License-Identifier: Apache-2.0
 # -----------------------------------------------------------------------
+# https://gerrit.opencord.org/plugins/gitiles/onf-make
 # ONF.makefile.version = 1.0
 # -----------------------------------------------------------------------
 
@@ -26,8 +27,8 @@
 export dot          :=.
 export null         :=#
 export space        := $(null) $(null)
-export quote-single := $(null)"$(null)#"
-export quote-double := $(null)'$(null)#'
+export quote-single := $(null)'$(null)#'
+export quote-double := $(null)"$(null)#"
 
 # [DEBUG] make {target} HIDE=
 HIDE        ?= @
diff --git a/makefiles/include.mk b/makefiles/include.mk
index 6d9f616..2f2e422 100644
--- a/makefiles/include.mk
+++ b/makefiles/include.mk
@@ -26,8 +26,6 @@
 ONF_ROOT      ?= $(TOP)/../onf-make/makefiles
 ONF_MAKEDIR   := $(ONF_ROOT)/makefiles
 
-
-
 ONF_MAKE ?= $(MAKEDIR)# fix this -- two distinct makefiles/ directories are needed
 ONF_MAKE ?= $(error ONF_MAKE= is required)
 
diff --git a/makefiles/lint/include.mk b/makefiles/lint/include.mk
index 357b6f5..f011e31 100644
--- a/makefiles/lint/include.mk
+++ b/makefiles/lint/include.mk
@@ -12,6 +12,7 @@
 include $(ONF_MAKE)/lint/groovy.mk
 include $(ONF_MAKE)/lint/jjb.mk
 include $(ONF_MAKE)/lint/json.mk
+include $(ONF_MAKE)/lint/license/include.mk
 include $(ONF_MAKE)/lint/makefile.mk
 include $(ONF_MAKE)/lint/python.mk
 include $(ONF_MAKE)/lint/shell.mk
diff --git a/makefiles/lint/license/include.mk b/makefiles/lint/license/include.mk
new file mode 100644
index 0000000..2b42049
--- /dev/null
+++ b/makefiles/lint/license/include.mk
@@ -0,0 +1,41 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+ifndef NO-LINT-REUSE
+  lint : lint-license
+endif
+
+## -----------------------------------------------------------------------
+## Intent: Perform a lint check on makefile sources
+## -----------------------------------------------------------------------
+lint-license:
+	reuse --root . lint
+
+## -----------------------------------------------------------------------
+## Intent: Display command help
+## -----------------------------------------------------------------------
+help-summary ::
+	@echo '  lint-reuse              License syntax checking'
+
+# [EOF]
diff --git a/makefiles/lint/license/reuse.mk b/makefiles/lint/license/reuse.mk
new file mode 100644
index 0000000..5572bef
--- /dev/null
+++ b/makefiles/lint/license/reuse.mk
@@ -0,0 +1,41 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 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.
+# -----------------------------------------------------------------------
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+
+##-------------------##
+##---]  TARGETS  [---##
+##-------------------##
+ifndef NO-LINT-REUSE
+  lint : lint-license
+endif
+
+## -----------------------------------------------------------------------
+## Intent: Perform a lint check on makefile sources
+## -----------------------------------------------------------------------
+lint-license:
+	reuse --root . lint
+
+## -----------------------------------------------------------------------
+## Intent: Display command help
+## -----------------------------------------------------------------------
+help-summary ::
+	@echo '  lint-reuse              License syntax checking"
+
+# [EOF]
diff --git a/makefiles/lint/shell.mk b/makefiles/lint/shell.mk
index b1a083b..a02da31 100644
--- a/makefiles/lint/shell.mk
+++ b/makefiles/lint/shell.mk
@@ -14,6 +14,9 @@
 # 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
+# -----------------------------------------------------------------------
 
 ##-------------------##
 ##---]  GLOBALS  [---##
@@ -30,7 +33,8 @@
 # shell-check    := $(env-clean) pylint
 shell-check      := shellcheck
 
-shell-check-args += -a
+shell-check-args += --check-sourced
+shell-check-args += --extenal-sources
 
 ##-------------------##
 ##---]  TARGETS  [---##
@@ -54,4 +58,8 @@
 help-summary ::
 	@echo '  lint-shell          Syntax check shell sources'
 
+# [SEE ALSO]
+# -----------------------------------------------------------------------
+#   o https://www.shellcheck.net/wiki/Directive
+
 # [EOF]
diff --git a/makefiles/lint/urls b/makefiles/lint/urls
new file mode 100644
index 0000000..5694a1b
--- /dev/null
+++ b/makefiles/lint/urls
@@ -0,0 +1,5 @@
+# -*- makefile -*-
+
+https://www.shellcheck.net/wiki/Directive
+
+# [EOF]
\ No newline at end of file
diff --git a/makefiles/virtualenv.mk b/makefiles/virtualenv.mk
index 2e12f24..93eb29d 100644
--- a/makefiles/virtualenv.mk
+++ b/makefiles/virtualenv.mk
@@ -14,6 +14,9 @@
 # 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
+# -----------------------------------------------------------------------
 
 $(if $(DEBUG),$(warning ENTER))