emit trailing spaces check message - circleci

.circleci/config.yml

@@ -389,6 +389,7 @@ jobs:
               HLINT_TARGETS: src test benchmark
             command: |
               bash -c "$PACKCHECK $BUILD" || exit 1
+              echo "Checking trailing spaces..."
               count=$(find . -name "*.hs" -exec grep -H '\ $' {} \; | tee /dev/tty | wc -l)
               exit $count
         - *save