debugging

Signed-off-by: chensuyue <suyue.chen@intel.com>

Author: chensuyue

.github/workflows/pr-link-scan.yml

@@ -102,6 +102,7 @@ jobs:
           merged_commit=$(git log -1 --format='%H')
           changed_files="$(git diff --name-status --diff-filter=ARM $BASE_SHA ${merged_commit} | awk '/\.md$/ {print $NF}')"
           png_lines=$(grep -Eo '\]\([^)]+\)' --include='*.md' -r .|grep -Ev 'http' | grep -Ev 'shape=' | grep -Ev 'mailto:inc.maintainers@intel.com')
+          set -x
           if [ -n "$png_lines" ]; then
             for png_line in $png_lines; do
               echo "No.1----->png_line is $png_line"