Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -42,8 +42,7 @@
   # push changes (if any)
   - git config --global user.email "${CI_EMAIL}"
   - git config --global user.name "${CI_USERNAME}"
-  - git add *.c *.h *.cpp *.hpp
-  - if git commit -m "license headers added or modified" ; then
+  - if git commit -u -m "license headers added or modified" ; then
   -   git remote set-url --push origin "ssh://git@gitlab.iri.upc.edu:2202/${CI_PROJECT_PATH}.git"
   -   git push origin HEAD:${CI_COMMIT_REF_NAME}
   - else