Fix Jinja2 spacing in hammer_packages to satisfy linter

Author: pablomh

src/roles/hammer/defaults/main.yml

@@ -4,5 +4,5 @@ hammer_ca_certificate: ""
 hammer_default_plugins:
   - foreman
 hammer_plugins: []
-hammer_packages: "{{ (hammer_default_plugins+hammer_plugins) | map('regex_replace', '^', 'hammer-cli-plugin-') }}"
+hammer_packages: "{{ (hammer_default_plugins + hammer_plugins) | map('regex_replace', '^', 'hammer-cli-plugin-') }}"
 hammer_kerberos_auth_enabled: "{{ external_authentication is defined and external_authentication == 'ipa_with_api' }}"