Add support for pre-commit hook/linting

.pre-commit-config.yaml
-----------------------
  o Create initial config for pre-commit hook.

misc/*
  o Basic inline cleanups courtesy of the pre-commit hook.

Signed-off-by: Joey Armstrong <jarmstrong@linuxfoundation.org>
Change-Id: I6aa20216ade22b1a7406e8358864fb245842b713
diff --git a/jjb/shell/github-release.sh b/jjb/shell/github-release.sh
index fec3872..dddfe0c 100755
--- a/jjb/shell/github-release.sh
+++ b/jjb/shell/github-release.sh
@@ -504,7 +504,7 @@
 {
     local -n ref=$1; shift
     local varpath="$ref"
-    
+
     DEST_GOPATH=${DEST_GOPATH:-}
     if [ -n "$DEST_GOPATH" ]; then
         mkdir -p "$GOPATH/src/$DEST_GOPATH"
@@ -939,9 +939,9 @@
 ## -----------------------------------------------------------------------
 function my_gh()
 {
-    func_echo "ENTER"    
+    func_echo "ENTER"
     set -x
- 
+
     declare -a cmd=()
     cmd+=("$gh_cmd")
 
@@ -958,7 +958,7 @@
         case "$arg" in
 
             # Modes
-            -*debug)	
+            -*debug)
 		# shellcheck disable=SC2034
 		declare -i -g debug=1
 		;;