Make some fix in formatting bash files

Signed-off-by: hansinikarunarathne <107214435+hansinikarunarathne@users.noreply.github.com>

.github/workflows/bash_formatter.yaml

@@ -38,7 +38,17 @@ jobs:
       run: cat changed_files_in_PR.txt || echo "No bash files have changed in this PR."
 
     - name: Run ShellCheck on changed files
-      if: steps.changed_files.outputs.changed_files != ''
+      id: lint
       run: |
-        cat changed_files_in_PR.txt | xargs -I {} shellcheck {} || echo "No changes needed for the bash files."
+        if grep -q 'No bash files have changed in this PR.' changed_files_in_PR.txt; then
+          echo "No bash files have changed in this PR."
+        else
+          cat changed_files_in_PR.txt | xargs -I {} shellcheck {} || exit 1
+        fi
+      shell: bash
+
+    - name: Check Bash lint results
+      if: success() && steps.lint.outcome == 'success'
+      run: echo "No styling issues with Bash files."
       shell: bash
+

hack/synchronize-istio-cni-manifests.sh

@@ -44,7 +44,7 @@ then
 fi
 
 # Create the branch in the manifests repository
-  if ! git show-ref --verify --quiet refs/heads/$BRANCH; then
+       if ! git show-ref --verify --quiet refs/heads/$BRANCH; then
     git checkout -b $BRANCH
 else
     echo "Branch $BRANCH already exists."