test if stderr is compact enough

Author: mvorisek

azure/setup.yml

@@ -8,7 +8,7 @@ steps:
       sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"
       sudo -u postgres psql -c "CREATE DATABASE test;"
     displayName: 'Setup'
-  - script: .github/scripts/setup-slapd.sh &>/dev/null
+  - script: .github/scripts/setup-slapd.sh >/dev/null
     displayName: 'Configure slapd'
   - script: |
       set -e