update for fix

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

Author: chensuyue

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

@@ -100,8 +100,8 @@ jobs:
           branch="https://github.com/$REPO_NAME/blob/$HEAD_REF"
 
           merged_commit=$(git log -1 --format='%H')
-          changed_files="$(git diff --name-status --diff-filter=ARM $BASE_SHA ${merged_commit} | awk '/\.md$/ {print $NF}' | grep -Ev 'shape=' )"
-          png_lines=$(grep -Eo '\]\([^)]+\)' --include='*.md' -r .|grep -Ev 'http')
+          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=')
           if [ -n "$png_lines" ]; then
             for png_line in $png_lines; do
               refer_path=$(echo "$png_line"|cut -d':' -f1 | cut -d'/' -f2-)