attempt to make docker command more readable

Author: vroldanbet

.travis.yml

@@ -27,7 +27,19 @@ before_install:
   - gem update bundler
 
 install:
-  - docker run --hostname ldap.example.org --env LDAP_TLS_VERIFY_CLIENT=try -p 389:389 -p 636:636 -v $(pwd)/test/fixtures/seed.ldif:/container/service/slapd/assets/config/bootstrap/ldif/50-bootstrap.ldif -v $(pwd)/test/fixtures/openldap/retcode.ldif:/container/service/slapd/assets/config/bootstrap/ldif/06-retcodes.ldif --name openldap --detach osixia/openldap:1.3.0 --copy-service --loglevel debug
+  ->
+    docker run
+      --hostname ldap.example.org
+      --env LDAP_TLS_VERIFY_CLIENT=try
+      -p 389:389
+      -p 636:636
+      -v $(pwd)/test/fixtures/seed.ldif:/container/service/slapd/assets/config/bootstrap/ldif/50-bootstrap.ldif
+      -v $(pwd)/test/fixtures/openldap/retcode.ldif:/container/service/slapd/assets/config/bootstrap/ldif/06-retcodes.ldif
+      --name openldap
+      --detach
+      osixia/openldap:1.3.0
+        --copy-service
+        --loglevel debug
   - bundle install
 
 script: bundle exec rake ci