[VOL-5296] shellcheck and yamllint cleanups

jjb/shell/github-release.sh
---------------------------
  o Cleanup shellcheck warnings prior to working on voltctl error.

jjb/docker-publish.yaml
-----------------------
   o repo: ci-management requires a yaml config edit in order for a job
     to run so arbitrarily modify docker-publish.yaml.
   o Cleanup yamllint warnings about long lines.

[HOWTO: test]
  % make lint-shell
    shellcheck jjb/shell/github-release.sh
  % make lint-yaml-all
    yamllint --strict jjb/docker-publish.yaml

Change-Id: If367e80da7c2e12c2025769eca716e439d6396ee
diff --git a/jjb/docker-publish.yaml b/jjb/docker-publish.yaml
index 4706c45..ad09132 100644
--- a/jjb/docker-publish.yaml
+++ b/jjb/docker-publish.yaml
@@ -1,11 +1,32 @@
 ---
-# generic docker image building + dockerhub publishing tasks
+
+# -----------------------------------------------------------------------
+# Copyright 2019-2024 Open Networking Foundation 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.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2019-2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+# Intent: Generic docker image building + dockerhub publishing tasks
+# -----------------------------------------------------------------------
 
 - job-template:
     id: docker-publish
     name: 'docker-publish_{project}'
-    description: |
-      Created by {id} job-template from ci-management/jjb/docker-publish.yaml, script pipeline/docker-publish.groovy
+    description: >+
+      Created by {id} job-template from ci-management/jjb/docker-publish.yaml,
+      script pipeline/docker-publish.groovy
 
     triggers:
       - cord-infra-gerrit-trigger-merge:
@@ -54,18 +75,22 @@
       - string:
           name: dockerRepo
           default: '{docker-repo}'
-          description: "Docker repository to push to ('opencord', 'xosproject', etc.)"
+          description: >
+            "Docker repository to push to ('opencord', 'xosproject', etc.)"
 
       - string:
           name: dockerRegistry
           default: '{docker-registry}'
           description: "Docker registry to push to (blank for DockerHub)"
 
-      # AWS CPU arch names: `x86_64` `arm64` (which don't align to vendor names... *sigh*)
+      # AWS CPU arch names: `x86_64` `arm64`
+      # (which don't align to vendor names... *sigh*)
       - string:
           name: dockerArchList
           default: 'x86_64'
-          description: "List of architectures to build containers on, pipe separated (nonfunctional currently)"
+          description: >
+            "List of architectures to build containers on, pipe separated
+            (nonfunctional currently)"
 
       - string:
           name: maintainers
diff --git a/jjb/shell/github-release.sh b/jjb/shell/github-release.sh
index 050f37e..40307e8 100755
--- a/jjb/shell/github-release.sh
+++ b/jjb/shell/github-release.sh
@@ -17,7 +17,7 @@
 # SPDX-FileCopyrightText: 2018-2024 Open Networking Foundation Contributors
 # SPDX-License-Identifier: Apache-2.0
 # -----------------------------------------------------------------------
-# github-release.sh
+# Intent:
 # builds (with make) and uploads release artifacts (binaries, etc.) to github
 # given a tag also create checksums files and release notes from the commit
 # message
@@ -123,7 +123,7 @@
 ## -----------------------------------------------------------------------
 function get_version()
 {
-    declare -n ref="$1"
+    local -n ref="$1"
 
     declare -a rev=()
     rev+=("$(( RANDOM % 10 + 1 ))")
@@ -267,7 +267,7 @@
 ## -----------------------------------------------------------------------
 function getGitVersion()
 {
-    declare -n varname="$1"; shift
+    local -n varname="$1"; shift
 
     local __ver # use prefix('__') to protect callers variable name
     if [[ -v cached_getGitVersion ]]; then
@@ -334,7 +334,7 @@
 ## -----------------------------------------------------------------------
 function getReleaseDescription()
 {
-    declare -n varname="$1"; shift
+    local -n varname="$1"; shift
 
     local msg
     msg="$(git log -1 --pretty=%B)"
@@ -354,7 +354,7 @@
 ## -----------------------------------------------------------------------
 function get_release_dir()
 {
-    declare -n varname=$1; shift
+    local -n varname=$1; shift
 
     # Temporary staging directory to copy artifacts to
     varname="$scratch/release"
@@ -367,7 +367,7 @@
 ## -----------------------------------------------------------------------
 function get_gh_hostname()
 {
-    declare -n varname=$1; shift
+    local -n varname=$1; shift
     varname+=('--hostname' "${__githost}")
     return
 }
@@ -377,7 +377,7 @@
 ## -----------------------------------------------------------------------
 function get_gh_repo_org()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
     declare -g __repo_org
 
     local org
@@ -398,7 +398,7 @@
 ## -----------------------------------------------------------------------
 function get_gh_repo_name()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
     declare -g __repo_name
 
     local name
@@ -419,7 +419,7 @@
 ## -----------------------------------------------------------------------
 function get_gh_releases()
 {
-    declare -n ref="$1"
+    local -n ref="$1"
 
     local repo_org
     get_gh_repo_org repo_org
@@ -437,7 +437,7 @@
 ## -----------------------------------------------------------------------
 function get_argv_repo()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
 
     local repo_org
     get_gh_repo_org repo_org
@@ -455,7 +455,7 @@
 ## -----------------------------------------------------------------------
 function get_argv_name()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
 
     local repo_name
     get_gh_repo_name repo_name
@@ -474,7 +474,7 @@
 ## -----------------------------------------------------------------------
 function get_argv_tag()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
 
     # cached_argv_tag='v3.41.3204'
     if [[ ! -v cached_argv_tag ]]; then
@@ -502,7 +502,7 @@
 ## -----------------------------------------------------------------------
 function get_release_path()
 {
-    declare -n ref=$1; shift
+    local -n ref=$1; shift
 
     # shellcheck disable=SC2128
     local varpath="$ref"
@@ -570,7 +570,8 @@
 function get_artifacts()
 {
     local dir="$1"    ; shift
-    declare -n refA=$1 ; shift
+    # shellcheck disable=SC2178
+    local -n refA=$1 ; shift
 
     # Glob available files, exclude checksums
     readarray -t __artifacts < <(find "$dir" -mindepth 1 ! -type d \
@@ -758,7 +759,8 @@
 ## -----------------------------------------------------------------------
 function get_releases()
 {
-    declare -n refA="$1"; shift
+    # shellcheck disable=SC2178
+    local -n refA="$1"; shift
 
     banner ""
     pushd "$scratch" >/dev/null
@@ -853,7 +855,8 @@
 ## -----------------------------------------------------------------------
 function releaseDelete()
 {
-    declare -n refA=$1; shift
+    # shellcheck disable=SC2178
+    local -n refA=$1; shift
     local version="$1"; shift
 
     banner "${refA[@]}"
@@ -926,7 +929,7 @@
 ##   o Command wrapper can provide defaults (--hostname github.com)
 ## -----------------------------------------------------------------------
 ## Given:
-##   scalar      Array variable name (declare -n is a reference)
+##   scalar      Array variable name (local -n is a reference)
 ## Return:
 ##   ref         gh command line passed back to caller
 ## Switches: