fix order of arguments in CI script

.gitlab-ci.yml

@@ -32,7 +32,7 @@ check_style:
     - export EASYBUILD_MODULE_NAMING_SCHEME="FlexibleCustomHierarchicalMNS"
     - faulty=""
     - printf "Checking changes between base %s (%s) and tip %s (%s)\n" "$BASE_COMMIT" "$(git describe --all --exclude pipeline/* $BASE_COMMIT 2> /dev/null)" "$TIP_COMMIT" "$(git describe --all --exclude pipeline/* $TIP_COMMIT 2> /dev/null)"
-    - eb_list=$(git diff-tree --no-commit-id -r "$TIP_COMMIT" "$BASE_COMMIT" | awk '$5 ~ /^M|^A/ && $6 ~ /eb$/ {print($6)}')
+    - eb_list=$(git diff-tree --no-commit-id -r "$BASE_COMMIT" "$TIP_COMMIT" | awk '$5 ~ /^M|^A/ && $6 ~ /eb$/ {print($6)}')
     - echo "List of files to be checked $eb_list"
     - for i in $eb_list; do
     - echo "Checking $(basename $i) ..."