fixup filename search

run_black_on_git_diff_adds.sh

@@ -18,7 +18,7 @@ echo "looking for diff at ${github_pr_url}"
 curl --request GET --url ${github_pr_url} --header "authorization: Bearer ${GITHUB_TOKEN}" --header "Accept: application/vnd.github.v3.diff" > github_diff.txt
 diff_length=`wc -l github_diff.txt`
 echo "approximate diff size: ${diff_length}"
-python_files=`cat github_diff.txt | grep -E -- "\+\+\+ |\-\-\- " | awk '{print $2}' | grep -Po -- "(?<=[ab]/).+(.py$)"`
+python_files=`cat github_diff.txt | grep -E -- "\+\+\+ |\-\-\- " | awk '{print $2}' | grep -Po -- "(?<=[ab]/).+.py$ | sort | uniq"`
 echo "python files edited in this PR: ${python_files}"
 
 if [[ -z "${LINE_LENGTH}" ]]; then